Stereocontrolled synthesis of 20,21-dihydro N-methylwelwitindolinone B isothiocyanate.
Bhat, Vikram; Rawal, Viresh H.; Chemical communications (Cambridge, England) 47 (2011) 9705–9707; doi:10.1039/c1cc13498a

data_7112686
_publ_section_title
;
 Stereocontrolled synthesis of 20,21-dihydro N-methylwelwitindolinone B
 isothiocyanate.
;
_journal_issue                   34
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9705
_journal_page_last               9707
_journal_paper_doi               10.1039/c1cc13498a
_journal_volume                  47
_journal_year                    2011
_chemical_formula_sum            'C22 H24 Cl N O2'
_chemical_formula_weight         369.87
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.502(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.941(4)
_cell_length_b                   9.465(4)
_cell_length_c                   22.998(8)
_cell_measurement_reflns_used    1024
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.02
_cell_measurement_theta_min      1.89
_cell_volume                     1823.0(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0505
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            3587
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.226
_exptl_absorpt_correction_T_max  0.9647
_exptl_absorpt_correction_T_min  0.9150
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
absorption corrections were made based on correspondance of
equivalent intensities usingprogram SADABS (G. Sheldrick, Bruker
Analytical X-ray Systems, Madison, WI)
;
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.357
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3699
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0627
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1021P)^2^+2.3488P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1734
_refine_ls_wR_factor_ref         0.1760
_reflns_number_gt                3577
_reflns_number_total             3699
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1cc13498a.txt
_cod_data_source_block           bhat04s
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7112686