Antarafacial Mediation of Oxygen Delivery by a Phenylsulfinyl Group in the Epoxidation of Proximal Double Bonds: Intramolecular Trapping of an Early Pummerer Intermediate with Stereoelectronic Control
Yandong Zhang; Jun Hee Lee; Samuel J. Danishefsky; Journal of the American Chemical Society 133 (2011) 752–755; doi:10.1021/ja1107707

data_4105560
_publ_section_title
;
 Antarafacial Mediation of Oxygen Delivery by a Phenylsulfinyl Group in
 the Epoxidation of Proximal Double Bonds: Intramolecular Trapping of an
 Early Pummerer Intermediate with Stereoelectronic Control
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              752
_journal_page_last               755
_journal_paper_doi               10.1021/ja1107707
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C21 H26 O2 S'
_chemical_formula_weight         342.48
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_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.468(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.182(3)
_cell_length_b                   19.464(5)
_cell_length_c                   14.135(4)
_cell_measurement_reflns_used    9975
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.85
_cell_measurement_theta_min      2.33
_cell_volume                     3625.5(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0653
_diffrn_reflns_av_sigmaI/netI    0.0529
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            58254
_diffrn_reflns_theta_full        30.62
_diffrn_reflns_theta_max         30.62
_diffrn_reflns_theta_min         1.55
_exptl_absorpt_coefficient_mu    0.189
_exptl_absorpt_correction_T_max  0.9814
_exptl_absorpt_correction_T_min  0.9491
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.255
_exptl_crystal_description       block
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.378
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         11142
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0477
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0436P)^2^+0.9910P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1004
_refine_ls_wR_factor_ref         0.1183
_reflns_number_gt                7123
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1107707_si_004.cif
_cod_data_source_block           yd6s10
_cod_original_cell_volume        3625.7(16)
_cod_database_code               4105560