Diastereoselective synthesis of 2-methoxyimidoyloxiranes via dimethyl phosphite-mediated coupling of α-keto N-sulfinyl imidates with aldehydes.
Huang, Wei; Liu, Hui; Lu, Chong-Dao; Xu, Yan-Jun; Chemical communications (Cambridge, England) 52 (2016) 13592–13595; doi:10.1039/c6cc07723d

data_7125222
_publ_section_title
;
 Diastereoselective synthesis of 2-methoxyimidoyloxiranes via dimethyl
 phosphite-mediated coupling of \a-keto N-sulfinyl imidates with
 aldehydes.
;
_journal_issue                   93
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              13592
_journal_page_last               13595
_journal_paper_doi               10.1039/c6cc07723d
_journal_volume                  52
_journal_year                    2016
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C20 H23 N O3 S'
_chemical_formula_sum            'C20 H23 N O3 S'
_chemical_formula_weight         357.45
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-09-22 deposited with the CCDC.
2016-10-27 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3041(12)
_cell_length_b                   10.2744(15)
_cell_length_c                   22.465(3)
_cell_measurement_reflns_used    2423
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.0825
_cell_measurement_theta_min      2.1797
_cell_volume                     1916.7(5)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  bruker-CCD
_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  0.0329
_diffrn_reflns_av_sigmaI/netI    0.0389
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            9795
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  0.969
_exptl_absorpt_correction_T_min  0.910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.113
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         3388
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0372
_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^)+(0.0547P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0914
_refine_ls_wR_factor_ref         0.0993
_reflns_number_gt                2797
_reflns_number_total             3388
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6cc07723d2.cif
_cod_data_source_block           7a
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               7125222