Epoxy-annulations by reactions of alpha-amido ketones with vinyl sulfonium salts. Reagent versus substrate control and kinetic resolution.
Unthank, Matthew G.; Tavassoli, Bahareh; Aggarwal, Varinder K.; Organic letters 10 (2008) 1501–1504; doi:10.1021/ol800318h

data_1504615
_publ_section_title
;
 Epoxy-annulations by reactions of alpha-amido ketones with vinyl
 sulfonium salts. Reagent versus substrate control and kinetic resolution.
;
_journal_issue                   7
_journal_name_full               'Organic letters'
_journal_page_first              1501
_journal_page_last               1504
_journal_paper_doi               10.1021/ol800318h
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C13 H17 N O3 S'
_chemical_formula_sum            'C13 H17 N O3 S'
_chemical_formula_weight         267.34
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.9661(15)
_cell_length_b                   8.8334(17)
_cell_length_c                   18.602(3)
_cell_measurement_reflns_used    1844
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      20.1295
_cell_measurement_theta_min      2.552
_cell_volume                     1309.0(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction
; 
SAINT v7.06A (Bruker-AXS, 1997-2003) & SHELXTL v6.14 (Bruker-AXS, 2003) 
;
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.192
_diffrn_detector_type            'Bruker-AXS SMART 1k'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_details      'frames, 0.3\% width'
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker-AXS Platform'
_diffrn_measurement_method       '\w scans'
_diffrn_measurement_specimen_support 'glass fibre'
_diffrn_radiation_collimation    '0.5 mm double pin hole'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71074
_diffrn_reflns_av_R_equivalents  0.1251
_diffrn_reflns_av_sigmaI/netI    0.1301
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13130
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.19
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           40
_diffrn_source_power             2
_diffrn_source_target            Mo
_diffrn_source_voltage           50
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.247
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    none
_exptl_crystal_description       block
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.974
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2994
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.974
_refine_ls_R_factor_all          0.1353
_refine_ls_R_factor_gt           0.0552
_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^)+(0.0389P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0864
_refine_ls_wR_factor_ref         0.1047
_reflns_number_gt                1690
_reflns_number_total             2994
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ol800318h-file001.cif
_cod_data_source_block           mu379fp-p212121
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_diffrn_radiation_probe' value 'X-ray' changed to
'x-ray' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               1504615