Diastereoselective Diels-Alder Reactions with an Allenyl-Containing Spiro-Amido Chiral Auxiliary
Jeff R. Henderson; Julian P. Chesterman; Masood Parvez; Brian A. Keay; Journal of Organic Chemistry 75 (2010) 988–991; doi:10.1021/jo902556b

data_4025218
_publ_contact_author
;
    Masood Parvez
    Department of Chemistry
    University of Calgary
    2500 University Drive N.W.
    Calgary, Alberta, Canada T2N 1N4  
;
_publ_contact_author_email       ' parvez@ucalgary.ca '
_publ_contact_author_fax         ' (403)289-9488 '
_publ_contact_author_phone       ' (403)220-5348 '
_publ_section_title
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 Diastereoselective Diels-Alder Reactions with an Allenyl-Containing
 Spiro-Amido Chiral Auxiliary
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              988
_journal_page_last               991
_journal_paper_doi               10.1021/jo902556b
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C32 H37 N O3'
_chemical_formula_sum            'C32 H37 N O3'
_chemical_formula_weight         483.63
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.578(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   41.4565(14)
_cell_length_b                   13.3049(4)
_cell_length_c                   20.3912(4)
_cell_measurement_reflns_used    10694
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1.0
_cell_volume                     10885.2(5)
_computing_cell_refinement       'HKL DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction        'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1991)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'Bruker APEX2 CCD'
_diffrn_measurement_method       ' \w and \f '
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0731
_diffrn_reflns_limit_h_max       53
_diffrn_reflns_limit_h_min       -53
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            18340
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.71
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9970
_exptl_absorpt_correction_T_min  0.9867
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV: (Blessing, 1997)'
_exptl_crystal_colour            plate
_exptl_crystal_density_diffrn    1.180
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4160
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.307
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.562
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     663
_refine_ls_number_reflns         12155
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.562
_refine_ls_R_factor_all          0.1514
_refine_ls_R_factor_gt           0.0908
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0240P)^2^+8.00P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1436
_refine_ls_wR_factor_ref         0.1684
_reflns_number_gt                7823
_reflns_number_total             12155
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo902556b_si_006.cif
_cod_data_source_block           Compound_I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4025218