Enantioselective Syntheses of 4H-3,1-Benzoxazines via Catalytic Asymmetric Chlorocyclization of o-Vinylanilides.
Xie, Qinxia; Long, Hai-Jiao; Zhang, Qiong-Yin; Tang, Pei; Deng, Jun; The Journal of organic chemistry  (2019) –; doi:10.1021/acs.joc.9b02395

data_4037805
_publ_section_title
;
 Enantioselective Syntheses of 4H-3,1-Benzoxazines via Catalytic
 Asymmetric Chlorocyclization of o-Vinylanilides.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.9b02395
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H14 Cl N O'
_chemical_formula_sum            'C16 H14 Cl N O'
_chemical_formula_weight         271.73
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-03-12
_audit_creation_method
;
Olex2 1.2-alpha
(compiled 2018.07.26 svn.r3523 for OlexSys, GUI svn.r5532)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3171(4)
_cell_length_b                   10.6442(5)
_cell_length_c                   15.5771(9)
_cell_measurement_reflns_used    1777
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      26.2040
_cell_measurement_theta_min      3.8030
_cell_volume                     1379.02(12)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.0892
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.891
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0209
_diffrn_reflns_av_unetI/netI     0.0406
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.891
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5312
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.864
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         28.818
_diffrn_reflns_theta_min         3.372
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.268
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57092
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46e (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.309
_exptl_crystal_description       block
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.187
_refine_diff_density_min         -0.241
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details
;
 Flack x determined using 758 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.07(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.112
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         3112
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.0477
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0442P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0985
_refine_ls_wR_factor_ref         0.1109
_reflns_Friedel_coverage         0.689
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.827
_reflns_number_gt                2417
_reflns_number_total             3112
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo9b02395_si_003.cif
_cod_data_source_block           20190311-dengjun-a29
_cod_original_cell_volume        1379.03(12)
_cod_database_code               4037805
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B)
2.b Aromatic/amide H refined with riding coordinates:
 C10(H10), C7(H7), C14(H14), C16(H16), C15(H15), C8(H8), C12(H12), C13(H13),
 C9(H9)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C)
;
_olex2_submission_special_instructions 'No special instructions were received'