Expedient synthesis of highly substituted 3,4-dihydro-1,2-oxathiine 2,2-dioxides and 1,2-oxathiine 2,2-dioxides: revisiting sulfene additions to enaminoketones.
Aiken, Stuart; Anozie, Kelechi; de Azevedo, Orlando D. C. C.; Cowen, Lewis; Edgar, Ross J. L.; Gabbutt, Christopher D.; Heron, B. Mark; Lawrence, Philippa A.; Mills, Abby J.; Rice, Craig R.; Urquhart, Mike W. J.; Zonidis, Dimitrios; Organic & biomolecular chemistry 17 (2019) 9585–9604; doi:10.1039/c9ob01657k

data_7157227
_publ_section_title
;
 Expedient synthesis of highly substituted 3,4-dihydro-1,2-oxathiine
 2,2-dioxides and 1,2-oxathiine 2,2-dioxides: revisiting sulfene additions
 to enaminoketones.
;
_journal_issue                   44
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              9585
_journal_page_last               9604
_journal_paper_doi               10.1039/c9ob01657k
_journal_volume                  17
_journal_year                    2019
_chemical_formula_sum            'C23 H23 N3 O2'
_chemical_formula_weight         373.44
_space_group_crystal_system      tetragonal
_space_group_IT_number           88
_space_group_name_Hall           '-I 4ad'
_space_group_name_H-M_alt        'I 41/a :2'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-05-02 deposited with the CCDC.	2019-10-31 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
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_cell_length_b                   38.315
_cell_length_c                   5.5470(8)
_cell_measurement_reflns_used    6514
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      74.54
_cell_measurement_theta_min      3.26
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_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
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_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0594
_diffrn_reflns_av_unetI/netI     0.0513
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.995
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_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
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_diffrn_reflns_point_group_measured_fraction_full 0.996
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_diffrn_reflns_theta_max         74.521
_diffrn_reflns_theta_min         2.306
_exptl_absorpt_coefficient_mu    0.631
_exptl_absorpt_correction_T_max  0.68
_exptl_absorpt_correction_T_min  0.51
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
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_exptl_crystal_description       plate
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         4122
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0713
_refine_ls_R_factor_gt           0.0502
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0437P)^2^+5.9308P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1101
_refine_ls_wR_factor_ref         0.1205
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3134
_reflns_number_total             4122
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob01657k2.cif
_cod_data_source_block           cu_ColourChem_ID0176_0m_a
_cod_original_cell_volume        8143.4(16)
_cod_original_sg_symbol_H-M      'I 41/a'
_cod_database_code               7157227
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              7309