Efficient synthesis of novel cyclic fused-phenothiazines via domino cyclization of 2-(benzo[b][1,4]thiazin-3-ylidene)acetate, aromatic aldehydes and cyclic 1,3-diketones
Sun, Jing; Sun, Quan-Shun; Yan, Chao-Guo; Organic Chemistry Frontiers 6 (2019) 3555–; doi:10.1039/C9QO00951E

data_1555141
_publ_section_title
;
 Efficient synthesis of novel cyclic fused-phenothiazines via domino
 cyclization of 2-(benzo[b][1,4]thiazin-3-ylidene)acetate, aromatic
 aldehydes and cyclic 1,3-diketones
;
_journal_issue                   20
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              3555
_journal_paper_doi               10.1039/C9QO00951E
_journal_volume                  6
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C24 H21 N O3 S'
_chemical_formula_sum            'C24 H21 N O3 S'
_chemical_formula_weight         403.48
_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
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-12-07 deposited with the CCDC.	2019-08-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.3838(11)
_cell_length_b                   11.2551(15)
_cell_length_c                   24.298(3)
_cell_measurement_reflns_used    2984
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.49
_cell_measurement_theta_min      2.47
_cell_volume                     2019.3(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      296(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_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0498
_diffrn_reflns_av_unetI/netI     0.0788
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            9464
_diffrn_reflns_point_group_measured_fraction_full 0.976
_diffrn_reflns_point_group_measured_fraction_max 0.978
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.990
_diffrn_reflns_theta_min         2.467
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  0.963
_exptl_absorpt_correction_T_min  0.953
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.327
_exptl_crystal_description       block
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.220
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.187
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details
; 
 Flack x determined using 745 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.38(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         3870
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.1009
_refine_ls_R_factor_gt           0.0506
_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^)+(0.0448P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.1005
_reflns_Friedel_coverage         0.697
_reflns_Friedel_fraction_full    0.947
_reflns_Friedel_fraction_max     0.950
_reflns_number_gt                2604
_reflns_number_total             3870
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qo00951e2.cif
_cod_data_source_block           3a
_cod_database_code               1555141
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.953
_shelx_estimated_absorpt_t_max   0.964
_shelx_res_checksum              8913
_shelx_hkl_checksum              18300