Highly Functionalized Tricyclic Oxazinanones via Pairwise Oxidative Dearomatization and N-Hydroxycarbamate Dehydrogenation: Molecular Diversity Inspired by Tetrodotoxin.
Good, Steffen N.; Sharpe, Robert J.; Johnson, Jeffrey S.; Journal of the American Chemical Society 139 (2017) 12422–12425; doi:10.1021/jacs.7b07745

data_4131644
_publ_section_title
;
 Highly Functionalized Tricyclic Oxazinanones via Pairwise Oxidative
 Dearomatization and N-Hydroxycarbamate Dehydrogenation: Molecular
 Diversity Inspired by Tetrodotoxin.
;
_journal_issue                   36
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12422
_journal_page_last               12425
_journal_paper_doi               10.1021/jacs.7b07745
_journal_volume                  139
_journal_year                    2017
_chemical_formula_moiety         'C15 H12 Cl N O5'
_chemical_formula_sum            'C15 H12 Cl N O5'
_chemical_formula_weight         321.71
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2015-09-10
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_cell_angle_alpha                90
_cell_angle_beta                 98.468(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.4757(2)
_cell_length_b                   17.3858(5)
_cell_length_c                   12.2330(4)
_cell_measurement_reflns_used    3973
_cell_measurement_temperature    100
_cell_measurement_theta_max      69.90
_cell_measurement_theta_min      4.45
_cell_volume                     1362.24(7)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_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  0.0492
_diffrn_reflns_av_unetI/netI     0.0304
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15064
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         70.040
_diffrn_reflns_theta_min         4.452
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.728
_exptl_absorpt_correction_T_max  0.9183
_exptl_absorpt_correction_T_min  0.5894
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0666 before and 0.0572 after correction.
The Ratio of minimum to maximum transmission is 0.6418.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.569
_exptl_crystal_description       block
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.245
_exptl_crystal_size_mid          0.068
_exptl_crystal_size_min          0.058
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2546
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0402
_refine_ls_R_factor_gt           0.0345
_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^)+(0.0533P)^2^+0.4025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0863
_refine_ls_wR_factor_ref         0.0898
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2228
_reflns_number_total             2546
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b07745_si_002.cif
_cod_data_source_block           x1509002
_cod_database_code               4131644
_shelx_estimated_absorpt_t_max   0.858
_shelx_estimated_absorpt_t_min   0.555
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 C4(H4), C7(H7)
2.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B), C16(H16A,H16B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
;
_shelx_res_checksum              1963
_shelx_hkl_checksum              17689
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'