# Supplementary Material (ESI) for Organic & Biomolecular Chemistry # This journal is © The Royal Society of Chemistry 2003 data_global _journal_coden_Cambridge 177 _publ_requested_journal 'Organic & Biomolecular Chemistry' _publ_requested_coeditor_name ? _publ_contact_author_name 'Dr Johannes Brussee' _publ_contact_author_address ; Leiden Institute of Chemistry Leiden University Gorlaeus Laboratories, PO Box 9502 Leiden 2300 RA NETHERLANDS ; _publ_contact_author_phone +31(0)715274266 _publ_contact_author_fax +31(0)715274565 _publ_contact_author_email Brussee@chem.leidenuniv.nl loop_ _publ_author_name 'Johannes Brussee' 'Arne van der Gen' 'Reynier A. Tromp' _publ_section_title ; Stereochemistry of Intramolecular Diels-Alder Furan (IMDAF) reactions of furyl-substituted chiral ethanolamides ; data_tromp_etal _database_code_CSD 214952 _audit_creation_date 01-06-14 _audit_creation_method from_xtal_archive_file_using_CIFIO _audit_update_record ; compound synthesized by Reynier A. Tromp 22feb01 measurement by S. Gorter 14jun01 structure refinement by W.L. Driessen solution by DIRDIF, refinement by XTAL3.4 positions of all non-H refined all nonH refined anisotropically H atoms placed at distance of 0.95 from parent atom H positions not refined, fixed isotropic thermal parameter P.T. Beurskens, G. Admiraal, G. Beurskens, W.P. Bosman, S. Garcia-Granda, R.O. Gould, J.M.M. Smits and C. Smykalla. The DIRDIF program system. Technical Report of the Crystallography Laboratory, University of Nijmegen, The Netherlands, 1992. S.R. Hall, G.S.D. King and J.M. Stewart, XTAL3.4 Users Manual. Universities of Western Australia and Maryland, 1995. A.J.C. Wilson, Ed., International Tables for Crystallography, Volume C, Kluwer Academic Publishers, Dordrecht, The Netherlands, 1992. A.L. Spek, PLATON, A multipurpose crystallographic tool. Utrecht University, The Netherlands, 2000. ; _chemical_compound_source ? _chemical_name_systematic ; (1S,2S,3S,6R,8S)-4-Benzyl-2-O-(tert-butyldimethylsilyl)-3-methyl-11-oxa-4-aza- tricyclo-[6.2.1.01.6] undec-9-en-5-one ; _chemical_name_common ? _chemical_formula_analytical ? _chemical_formula_moiety ? _chemical_formula_structural ? _chemical_formula_sum C23H33NO3Si _chemical_formula_weight 399.22 _chemical_melting_point ? _computing_data_collection 'Enraf Nonius CAD4' _computing_cell_refinement 'Enraf Nonius CAD4' _computing_data_reduction 'Enraf Nonius CAD4' _computing_structure_solution DIRDIF _computing_structure_refinement xtal3.4 _computing_molecular_graphics Platon _computing_publication_material Platon _cell_length_a 19.214(6) _cell_length_b 16.341(4) _cell_length_c 7.1838(9) _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 2255.5(9) _cell_formula_units_Z 4 _cell_measurement_temperature 145 _cell_measurement_reflns_used 24 _cell_measurement_theta_min 10.0 _cell_measurement_theta_max 11.7 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M p_21_21_21 _symmetry_space_group_name_Hall p_2ac_2ab loop_ _symmetry_equiv_pos_as_xyz +x,+y,+z 1/2-x,-y,1/2+z 1/2+x,1/2-y,-z -x,1/2+y,1/2-z _exptl_crystal_description needle _exptl_crystal_preparation 'crystalisation from CH2Cl2/hexane' _exptl_crystal_colour colourless _exptl_crystal_size_max ? _exptl_crystal_size_mid ? _exptl_crystal_size_min ? _exptl_crystal_density_diffrn 1.177 _exptl_crystal_density_meas none _exptl_crystal_F_000 864 _exptl_absorpt_process_details ? _exptl_absorpt_coefficient_mu 0.13 _exptl_absorpt_correction_type none _diffrn_ambient_temperature 145 _diffrn_radiation_wavelength 0.710730 _diffrn_radiation_type 'Mo K alpha' _diffrn_radiation_source xray_tube _diffrn_radiation_monochromator graphite _diffrn_radiation_detector ? _diffrn_measurement_device ? _diffrn_measurement_method omega/theta _diffrn_standards_number 3 _diffrn_standards_interval_count ? _diffrn_standards_interval_time 5400 _diffrn_standards_decay_% 4.43 loop_ _diffrn_standard_refln_index_h _diffrn_standard_refln_index_k _diffrn_standard_refln_index_l 0 1 -4 8 4 -1 8 6 0 _diffrn_reflns_number 5389 _diffrn_reflns_av_R_equivalents 0 _diffrn_reflns_av_sigmaI/netI 0 _diffrn_reflns_limit_h_min 0 _diffrn_reflns_limit_h_max 30 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_k_max 26 _diffrn_reflns_limit_l_min 0 _diffrn_reflns_limit_l_max 11 _diffrn_reflns_theta_min 2.12 _diffrn_reflns_theta_max 34.64 _diffrn_reflns_reduction_process ? loop_ _atom_type_symbol _atom_type_description _atom_type_oxidation_number _atom_type_number_in_cell _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C ? 0 92 .002 .002 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 H ? 0 132 0 0 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 N ? 0 4 .004 .003 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 O ? 0 12 .008 .006 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 Si ? 0 4 .072 .071 Int._Tables_Vol_IV_Tables_2.2B_and_2.3.1 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_calc_flag _atom_site_calc_attached_atom C1 .53433(12) .70672(13) .3261(4) .0245(11) Uani ? ? C2 .47726(11) .68922(14) .4637(3) .0218(10) Uani ? ? C3 .44627(12) .60416(13) .4375(3) .0205(11) Uani ? ? N4 .43199(9) .58682(11) .2390(3) .0202(9) Uani ? ? C5 .45944(11) .62605(14) .0913(4) .0231(11) Uani ? ? C6 .50999(11) .69501(15) .1224(3) .0242(11) Uani ? ? C7 .58099(13) .67984(17) .0219(4) .0354(14) Uani ? ? C8 .63159(12) .68771(17) .1881(5) .0391(14) Uani ? ? C9 .63152(13) .77678(17) .2476(5) .0466(17) Uani ? ? C10 .57162(13) .78876(15) .3321(5) .0371(15) Uani ? ? O11 .59212(8) .65032(10) .3355(3) .0322(9) Uani ? ? O12 .44320(9) .60812(12) -.0697(3) .0374(10) Uani ? ? O13 .42600(8) .75073(9) .4278(2) .0227(8) Uani ? ? C14 .49018(13) .53717(14) .5247(4) .0279(12) Uani ? ? C15 .38060(12) .52222(13) .2047(4) .0264(11) Uani ? ? C16 .30566(11) .55113(13) .2130(3) .0217(11) Uani ? ? C17 .25327(14) .49343(16) .2352(4) .0302(12) Uani ? ? C18 .18382(13) .51623(17) .2371(4) .0331(14) Uani ? ? C19 .16629(13) .59715(18) .2181(5) .0402(16) Uani ? ? C20 .21807(14) .65515(17) .1955(6) .0470(17) Uani ? ? C21 .28725(13) .63245(15) .1932(4) .0336(14) Uani ? ? Si22 .38789(3) .80849(4) .58699(10) .0230(3) Uani ? ? C23 .32605(14) .74595(16) .7243(4) .0401(15) Uani ? ? C24 .45501(15) .85293(17) .7443(4) .0405(15) Uani ? ? C25 .34352(14) .89212(14) .4513(4) .0322(13) Uani ? ? C26 .31079(17) .95378(16) .5866(5) .0516(18) Uani ? ? C27 .39609(18) .93695(17) .3307(5) .0529(18) Uani ? ? C28 .28619(19) .85646(19) .3277(6) .061(2) Uani ? ? H2 .49451 .69486 .58692 .08000 Uiso ? ? H3 .40269 .60386 .49993 .08000 Uiso ? ? H6 .49017 .74463 .07828 .08000 Uiso ? ? H71 .58296 .62697 -.03279 .08000 Uiso ? ? H72 .58987 .72009 -.07059 .08000 Uiso ? ? H8 .67641 .66480 .16825 .08000 Uiso ? ? H91 .66736 .81591 .22787 .08000 Uiso ? ? H101 .55513 .83829 .38554 .08000 Uiso ? ? H141 .53505 .53818 .46929 .08000 Uiso ? ? H142 .49421 .54776 .65429 .08000 Uiso ? ? H143 .47084 .48415 .50838 .08000 Uiso ? ? H151 .38892 .50004 .08449 .08000 Uiso ? ? H152 .38679 .48072 .29584 .08000 Uiso ? ? H17 .26523 .43736 .24930 .08000 Uiso ? ? H18 .14854 .47599 .25154 .08000 Uiso ? ? H19 .11879 .61333 .22030 .08000 Uiso ? ? H20 .20588 .71119 .18172 .08000 Uiso ? ? H21 .32235 .67287 .17789 .08000 Uiso ? ? H231 .29172 .72369 .64378 .08000 Uiso ? ? H232 .35054 .70273 .78383 .08000 Uiso ? ? H233 .30417 .77912 .81580 .08000 Uiso ? ? H241 .47982 .81002 .80375 .08000 Uiso ? ? H242 .48638 .88536 .67356 .08000 Uiso ? ? H243 .43309 .88612 .83573 .08000 Uiso ? ? H261 .27759 .92662 .66263 .08000 Uiso ? ? H262 .34608 .97689 .66272 .08000 Uiso ? ? H263 .28839 .99598 .51807 .08000 Uiso ? ? H271 .43105 .96026 .40776 .08000 Uiso ? ? H272 .41688 .89934 .24653 .08000 Uiso ? ? H273 .37371 .97916 .26224 .08000 Uiso ? ? H281 .30615 .81832 .24337 .08000 Uiso ? ? H282 .25285 .82944 .40358 .08000 Uiso ? ? H283 .26380 .89867 .25925 .08000 Uiso ? ? loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 C1 .0209(11) .0187(11) .0340(13) .0001(9) -.0043(10) -.0029(10) C2 .0236(10) .0183(9) .0235(11) .0034(9) -.0040(9) -.0023(10) C3 .0239(11) .0179(10) .0196(11) .0021(9) .0006(10) -.0002(9) N4 .0201(9) .0184(8) .0221(10) -.0031(7) -.0005(8) -.0019(8) C5 .0181(10) .0286(11) .0226(11) .0023(9) .0003(10) -.0014(11) C6 .0205(10) .0234(11) .0286(13) -.0003(10) .0039(9) .0020(10) C7 .0258(12) .0359(14) .0445(16) -.0033(11) .0146(12) .0021(13) C8 .0180(11) .0340(13) .065(2) -.0013(11) .0077(13) .0004(16) C9 .0261(13) .0356(14) .078(2) -.0103(11) .0015(16) -.0083(16) C10 .0310(13) .0239(12) .0565(19) -.0079(10) -.0021(14) -.0081(12) O11 .0183(8) .0299(9) .0485(12) .0036(7) -.0017(8) -.0005(9) O12 .0376(10) .0525(12) .0221(9) -.0069(9) -.0008(9) -.0055(9) O13 .0268(8) .0170(7) .0244(8) .0045(6) -.0007(8) -.0016(8) C14 .0339(13) .0231(11) .0267(13) .0081(10) .0000(11) .0020(10) C15 .0225(11) .0188(10) .0378(14) -.0038(9) -.0013(11) -.0032(10) C16 .0221(11) .0239(11) .0191(11) -.0025(9) -.0002(10) .0004(10) C17 .0303(11) .0267(11) .0337(13) -.0087(10) -.0017(12) .0035(11) C18 .0294(13) .0446(15) .0255(13) -.0155(12) .0013(12) -.0014(12) C19 .0219(12) .0513(17) .0475(18) -.0019(12) -.0029(13) -.0116(15) C20 .0296(13) .0323(14) .079(2) .0015(12) -.0092(16) -.0007(17) C21 .0229(11) .0248(12) .0533(18) -.0034(10) -.0049(13) .0029(13) Si22 .0277(3) .0170(3) .0243(3) .0014(3) .0042(3) -.0014(3) C23 .0405(15) .0338(13) .0460(18) .0052(12) .0141(14) .0099(14) C24 .0517(16) .0345(14) .0353(15) -.0032(13) -.0035(15) -.0118(13) C25 .0419(14) .0169(10) .0376(15) .0081(10) .0075(12) .0013(11) C26 .065(2) .0281(13) .062(2) .0173(14) .022(2) .0016(16) C27 .072(2) .0328(14) .054(2) .0148(16) .024(2) .0167(14) C28 .070(2) .0350(16) .079(3) .0160(16) -.028(2) .0063(18) _atom_sites_solution_primary DIRDIF _atom_sites_solution_secondary xtal_fourr _atom_sites_solution_hydrogens calculated _refine_special_details sfls:_F____sigma_weight______full_matrix _refine_ls_structure_factor_coef F _refine_ls_matrix_type full _refine_ls_weighting_scheme sigma _refine_ls_hydrogen_treatment none _refine_ls_extinction_method none _refine_ls_extinction_coef .0 _refine_ls_abs_structure_details none _refine_ls_abs_structure_Flack 0 _refine_ls_number_reflns 3129 _refine_ls_number_parameters 253 _refine_ls_number_restraints 0 _refine_ls_number_constraints 0 _refine_ls_R_factor_all .084 _refine_ls_R_factor_obs .042 _refine_ls_wR_factor_all .05 _refine_ls_wR_factor_obs .045 _refine_ls_goodness_of_fit_all 1.684 _refine_ls_goodness_of_fit_obs 2.039 _refine_ls_shift/esd_max .007 _refine_ls_shift/esd_mean .001 _refine_diff_density_min -.414 _refine_diff_density_max .446 loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_site_symmetry_1 _geom_bond_site_symmetry_2 _geom_bond_publ_flag C1 C2 1.503(3) . . ? C1 C6 1.548(4) . . ? C1 C10 1.521(3) . . ? C1 O11 1.445(3) . . ? C2 C3 1.524(3) . . ? C2 O13 1.431(3) . . ? C2 H2 .950(2) . . ? C3 N4 1.480(3) . . ? C3 C14 1.518(3) . . ? C3 H3 .950(2) . . ? N4 C5 1.347(3) . . ? N4 C15 1.466(3) . . ? C5 C6 1.504(3) . . ? C5 O12 1.233(3) . . ? C6 C7 1.563(3) . . ? C6 H6 .950(2) . . ? C7 C8 1.545(4) . . ? C7 H71 .950(3) . . ? C7 H72 .950(3) . . ? C8 C9 1.517(4) . . ? C8 O11 1.439(4) . . ? C8 H8 .950(2) . . ? C9 C10 1.316(4) . . ? C9 H91 .950(3) . . ? C10 H101 .950(3) . . ? O13 Si22 1.6537(17) . . ? C14 H141 .950(2) . . ? C14 H142 .950(3) . . ? C14 H143 .950(2) . . ? C15 C16 1.517(3) . . ? C15 H151 .950(3) . . ? C15 H152 .950(2) . . ? C16 C17 1.388(3) . . ? C16 C21 1.382(3) . . ? C17 C18 1.386(4) . . ? C17 H17 .950(3) . . ? C18 C19 1.371(4) . . ? C18 H18 .950(3) . . ? C19 C20 1.383(4) . . ? C19 H19 .950(3) . . ? C20 C21 1.380(4) . . ? C20 H20 .950(3) . . ? C21 H21 .950(2) . . ? Si22 C23 1.852(3) . . ? Si22 C24 1.862(3) . . ? Si22 C25 1.883(3) . . ? C23 H231 .950(3) . . ? C23 H232 .950(3) . . ? C23 H233 .950(3) . . ? C24 H241 .949(3) . . ? C24 H242 .950(3) . . ? C24 H243 .950(3) . . ? C25 C26 1.535(4) . . ? C25 C27 1.520(4) . . ? C25 C28 1.530(5) . . ? C26 H261 .950(3) . . ? C26 H262 .949(3) . . ? C26 H263 .950(3) . . ? C27 H271 .950(3) . . ? C27 H272 .950(3) . . ? C27 H273 .950(3) . . ? C28 H281 .950(4) . . ? C28 H282 .950(4) . . ? C28 H283 .950(3) . . ? loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_2 _geom_angle_site_symmetry_3 _geom_angle_publ_flag C2 C1 C6 112.17(18) . . . ? C2 C1 C10 119.5(2) . . . ? C2 C1 O11 114.1(2) . . . ? C6 C1 C10 106.1(2) . . . ? C6 C1 O11 101.38(19) . . . ? C10 C1 O11 101.48(17) . . . ? C1 C2 C3 112.18(19) . . . ? C1 C2 O13 104.48(18) . . . ? C1 C2 H2 109.9(2) . . . ? C3 C2 O13 110.46(17) . . . ? C3 C2 H2 109.9(2) . . . ? O13 C2 H2 109.9(2) . . . ? C2 C3 N4 111.47(18) . . . ? C2 C3 C14 112.93(19) . . . ? C2 C3 H3 106.9(2) . . . ? N4 C3 C14 111.28(18) . . . ? N4 C3 H3 106.9(2) . . . ? C14 C3 H3 106.9(2) . . . ? C3 N4 C5 126.54(19) . . . ? C3 N4 C15 115.12(18) . . . ? C5 N4 C15 118.3(2) . . . ? N4 C5 C6 119.5(2) . . . ? N4 C5 O12 121.8(2) . . . ? C6 C5 O12 118.7(2) . . . ? C1 C6 C5 115.3(2) . . . ? C1 C6 C7 101.11(18) . . . ? C1 C6 H6 109.3(2) . . . ? C5 C6 C7 112.1(2) . . . ? C5 C6 H6 109.3(2) . . . ? C7 C6 H6 109.3(2) . . . ? C6 C7 C8 100.3(2) . . . ? C6 C7 H71 111.7(2) . . . ? C6 C7 H72 111.7(2) . . . ? C8 C7 H71 111.7(2) . . . ? C8 C7 H72 111.7(2) . . . ? H71 C7 H72 109.5(3) . . . ? C7 C8 C9 107.3(2) . . . ? C7 C8 O11 101.63(19) . . . ? C7 C8 H8 114.9(3) . . . ? C9 C8 O11 101.5(2) . . . ? C9 C8 H8 114.9(2) . . . ? O11 C8 H8 114.9(3) . . . ? C8 C9 C10 105.9(2) . . . ? C8 C9 H91 127.1(3) . . . ? C10 C9 H91 127.1(3) . . . ? C1 C10 C9 105.5(2) . . . ? C1 C10 H101 127.2(3) . . . ? C9 C10 H101 127.2(3) . . . ? C1 O11 C8 95.74(18) . . . ? C2 O13 Si22 125.54(14) . . . ? C3 C14 H141 108.6(2) . . . ? C3 C14 H142 108.6(2) . . . ? C3 C14 H143 112.9(2) . . . ? H141 C14 H142 109.5(2) . . . ? H141 C14 H143 108.6(2) . . . ? H142 C14 H143 108.6(2) . . . ? N4 C15 C16 114.12(17) . . . ? N4 C15 H151 108.3(2) . . . ? N4 C15 H152 108.3(2) . . . ? C16 C15 H151 108.3(2) . . . ? C16 C15 H152 108.3(2) . . . ? H151 C15 H152 109.4(2) . . . ? C15 C16 C17 118.8(2) . . . ? C15 C16 C21 122.6(2) . . . ? C17 C16 C21 118.6(2) . . . ? C16 C17 C18 121.1(2) . . . ? C16 C17 H17 119.5(3) . . . ? C18 C17 H17 119.4(3) . . . ? C17 C18 C19 119.7(2) . . . ? C17 C18 H18 120.1(3) . . . ? C19 C18 H18 120.2(3) . . . ? C18 C19 C20 119.7(2) . . . ? C18 C19 H19 120.2(3) . . . ? C20 C19 H19 120.1(3) . . . ? C19 C20 C21 120.7(3) . . . ? C19 C20 H20 119.7(3) . . . ? C21 C20 H20 119.7(3) . . . ? C16 C21 C20 120.2(2) . . . ? C16 C21 H21 119.9(2) . . . ? C20 C21 H21 119.9(3) . . . ? O13 Si22 C23 109.73(11) . . . ? O13 Si22 C24 109.62(11) . . . ? O13 Si22 C25 104.88(11) . . . ? C23 Si22 C24 109.65(14) . . . ? C23 Si22 C25 112.68(12) . . . ? C24 Si22 C25 110.16(12) . . . ? Si22 C23 H231 109.4(2) . . . ? Si22 C23 H232 109.4(2) . . . ? Si22 C23 H233 109.7(2) . . . ? H231 C23 H232 109.5(3) . . . ? H231 C23 H233 109.4(3) . . . ? H232 C23 H233 109.4(3) . . . ? Si22 C24 H241 109.4(2) . . . ? Si22 C24 H242 109.4(2) . . . ? Si22 C24 H243 109.6(2) . . . ? H241 C24 H242 109.5(3) . . . ? H241 C24 H243 109.5(3) . . . ? H242 C24 H243 109.4(3) . . . ? Si22 C25 C26 109.5(2) . . . ? Si22 C25 C27 110.1(2) . . . ? Si22 C25 C28 110.49(18) . . . ? C26 C25 C27 108.5(2) . . . ? C26 C25 C28 108.8(2) . . . ? C27 C25 C28 109.3(3) . . . ? C25 C26 H261 109.4(2) . . . ? C25 C26 H262 109.5(3) . . . ? C25 C26 H263 109.5(3) . . . ? H261 C26 H262 109.5(4) . . . ? H261 C26 H263 109.4(3) . . . ? H262 C26 H263 109.5(3) . . . ? C25 C27 H271 109.3(3) . . . ? C25 C27 H272 109.3(3) . . . ? C25 C27 H273 110.1(3) . . . ? H271 C27 H272 109.4(3) . . . ? H271 C27 H273 109.3(3) . . . ? H272 C27 H273 109.3(3) . . . ? C25 C28 H281 109.2(3) . . . ? C25 C28 H282 109.2(3) . . . ? C25 C28 H283 110.5(3) . . . ? H281 C28 H282 109.5(3) . . . ? H281 C28 H283 109.2(4) . . . ? H282 C28 H283 109.2(4) . . . ? _reflns_limit_h_min 0 _reflns_limit_h_max 30 _reflns_limit_k_min 0 _reflns_limit_k_max 26 _reflns_limit_l_min 0 _reflns_limit_l_max 11 _reflns_number_total 5389 _reflns_number_observed 3287 _reflns_observed_criterion refl_observed_if_F____>_.000_sigma(F___) _reflns_d_resolution_high .625 _reflns_d_resolution_low 9.589 loop_ _reflns_scale_group_code _reflns_scale_meas_F ? .362496