Synthesis of Glycoconjugate Benzothiazoles via Cleavage of Benzotriazole Ring
Dhananjay Kumar; Amrita Mishra; Bhuwan B. Mishra; Subrato Bhattacharya; Vinod K. Tiwari; Journal of Organic Chemistry 78 (2013) 899–909; doi:10.1021/jo3021049

data_4027881
_publ_contact_author_address
;Department of Chemistry
Banaras Hindu University
India
;
_publ_contact_author_name        'Dr. V. K. Tiwari'
_publ_section_title
;
 Synthesis of Glycoconjugate Benzothiazoles via Cleavage of Benzotriazole
 Ring
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              899
_journal_page_last               909
_journal_paper_doi               10.1021/jo3021049
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C23 H23 N3 O6 S'
_chemical_formula_weight         469.50
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2bc 2'
_symmetry_space_group_name_H-M   'P 2 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 90.000(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   6.604(5)
_cell_length_b                   15.955(5)
_cell_length_c                   22.405(5)
_cell_measurement_temperature    293(2)
_cell_volume                     2361(2)
_computing_cell_refinement       'CrysAlisPro, Agilent Technologies'
_computing_data_collection       'CrysAlisPro, Agilent Technologies'
_computing_data_reduction        'CrysAlisPro, Agilent Technologies'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.843
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0569
_diffrn_reflns_av_sigmaI/netI    0.0933
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7195
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.35
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  0.9683
_exptl_absorpt_correction_T_min  0.9512
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Agilent Technologies'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_description       rod
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.613
_refine_diff_density_min         -0.373
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.3(2)
_refine_ls_extinction_coef       0.0032(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.152
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         4830
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.152
_refine_ls_R_factor_all          0.1595
_refine_ls_R_factor_gt           0.0767
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0596P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1703
_refine_ls_wR_factor_ref         0.2182
_reflns_number_gt                2100
_reflns_number_total             4830
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo3021049_si_002_3.cif
_cod_data_source_block           Compound7
_cod_database_code               4027881