Rhodium-catalyzed asymmetric arylation of N- and O-containing cyclic aldimines: facile and efficient access to highly optically active 3,4-dihydrobenzo[1,4]oxazin-2-ones and dihydroquinoxalinones
Zhang, Xu; Xu, Bin; Xu, Ming-Hua; Organic Chemistry Frontiers 3 (2016) 944–; doi:10.1039/C6QO00191B

data_1553467
_publ_section_title
;
 Rhodium-catalyzed asymmetric arylation of N- and O-containing cyclic
 aldimines: facile and efficient access to highly optically active
 3,4-dihydrobenzo[1,4]oxazin-2-ones and dihydroquinoxalinones
;
_journal_issue                   8
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              944
_journal_paper_doi               10.1039/C6QO00191B
_journal_volume                  3
_journal_year                    2016
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C14 H10 Br N O2'
_chemical_formula_sum            'C14 H10 Br N O2'
_chemical_formula_weight         304.14
_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   mixed
_audit_creation_date             2016-04-20
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2015.11.10 svn.r3248 for OlexSys, GUI svn.r5133)
;
_audit_update_record
;
2016-05-05 deposited with the CCDC.
2016-05-31 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.4197(5)
_cell_length_b                   11.6677(13)
_cell_length_c                   22.915(2)
_cell_measurement_reflns_used    986
_cell_measurement_temperature    173
_cell_measurement_theta_max      20.277
_cell_measurement_theta_min      3.188
_cell_volume                     1181.7(2)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_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    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      173
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1091
_diffrn_reflns_av_unetI/netI     0.1028
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            8364
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.002
_diffrn_reflns_theta_max         25.002
_diffrn_reflns_theta_min         1.777
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.470
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.4529
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1131 before and 0.0752 after correction.
The Ratio of minimum to maximum transmission is 0.6077.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.710
_exptl_crystal_description       block
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.596
_refine_diff_density_min         -0.665
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details
;
 Flack x determined using 378 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.012(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2081
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1053
_refine_ls_R_factor_gt           0.0562
_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^)+(0.0140P)^2^+0.4660P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0883
_refine_ls_wR_factor_ref         0.0994
_reflns_Friedel_coverage         0.649
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                1396
_reflns_number_total             2081
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6qo00191b2.cif
_cod_data_source_block           mo_2016150_0m
_cod_depositor_comments
;

2022-09-15
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C28 H20 Br2 N2 O4'
_cod_original_formula_weight         608.28
_cod_original_formula_moiety         '2(C14 H10 Br N O2)'
_cod_original_formula_units_Z            2
_cod_database_code               1553467
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
2.a Riding coordinates:
 N1(H1)
2.b Ternary CH refined with riding coordinates:
 C7(H7)
2.c Aromatic/amide H refined with riding coordinates:
 C1(H1A), C3(H3), C4(H4), C5(H5), C11(H11), C12(H12), C13(H13), C14(H14)
;
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'