Organolithium-Mediated Conversion of β-Alkoxy Aziridines into Allylic Sulfonamides: Effect of the N-Sulfonyl Group and a Formal Synthesis of (\±)-Perhydrohistrionicotoxin
Susannah C. Coote; Stephen P. Moore; Peter O'Brien; Adrian C. Whitwood; John Gilday; Journal of Organic Chemistry 73 (2008) 7852–7855; doi:10.1021/jo801586h

data_4023723
_publ_section_title
;
 Organolithium-Mediated Conversion of \b-Alkoxy Aziridines into
 Allylic Sulfonamides: Effect of the N-Sulfonyl Group and a Formal
 Synthesis of (\+-)-Perhydrohistrionicotoxin
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7852
_journal_page_last               7855
_journal_paper_doi               10.1021/jo801586h
_journal_volume                  73
_journal_year                    2008
_chemical_formula_moiety         'C18 H25 N O3 S'
_chemical_formula_sum            'C18 H25 N O3 S'
_chemical_formula_weight         335.45
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   13.5621(8)
_cell_length_b                   13.4559(7)
_cell_length_c                   19.5848(11)
_cell_measurement_reflns_used    4927
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      22.28
_cell_measurement_theta_min      2.37
_cell_volume                     3574.0(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      300(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0219
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            27112
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.195
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.914
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2.03; (Sheldrick)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     232
_refine_ls_number_reflns         3148
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0513
_refine_ls_R_factor_gt           0.0375
_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^)+(0.0552P)^2^+0.9794P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0963
_refine_ls_wR_factor_ref         0.1063
_reflns_number_gt                2481
_reflns_number_total             3148
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo801586h_si_002.cif
_cod_data_source_block           pob0602a
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4023723