Reaction of Cyclic α-Oxoketene Dithioacetals with Methylene Isocyanides: A Novel Pyrrole Annulation–Ring-Expansion Domino Process
Yugandar, Somaraju; Misra, Nimesh C.; Parameshwarappa, Gangajji; Panda, Kausik; Ila, Hiriyakkanavar; Organic Letters 15 (2013) 5250–; doi:10.1021/ol402469v

data_1512579
_publ_section_title
;
 Reaction of Cyclic \a-Oxoketene Dithioacetals with Methylene Isocyanides:
 A Novel Pyrrole Annulation--Ring-Expansion Domino Process
;
_journal_issue                   20
_journal_name_full               'Organic Letters'
_journal_page_first              5250
_journal_paper_doi               10.1021/ol402469v
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C22 H14 Cl N O S'
_chemical_formula_weight         375.85
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 102.8940(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.18630(10)
_cell_length_b                   20.22670(10)
_cell_length_c                   15.44760(10)
_cell_measurement_reflns_used    16397
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      72.0114
_cell_measurement_theta_min      3.6557
_cell_volume                     3407.07(4)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'OXFORD DIFFRACTION SUPER NOVA'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Micro-Focus (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.0157
_diffrn_reflns_av_sigmaI/netI    0.0130
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            22812
_diffrn_reflns_theta_full        72.16
_diffrn_reflns_theta_max         72.16
_diffrn_reflns_theta_min         3.66
_exptl_absorpt_coefficient_mu    3.211
_exptl_absorpt_correction_T_max  0.6803
_exptl_absorpt_correction_T_min  0.5255
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.465
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1552
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.448
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     471
_refine_ls_number_reflns         6642
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.114
_refine_ls_R_factor_all          0.0343
_refine_ls_R_factor_gt           0.0336
_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^)+(0.0431P)^2^+1.8030P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0904
_refine_ls_wR_factor_ref         0.0909
_reflns_number_gt                6444
_reflns_number_total             6642
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol402469v_si_002.cif
_cod_data_source_block           jncasr001a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1512579