Catalyst-Free and Selective Synthesis of 2-Aminothiophenes and 2-Amino-4,5-dihydrothiophenes from 4-Thiazolidinones in Water
Zeng, Fanxun; Liu, Pengjian; Li, Z.; Shao, Xusheng; Xu, Xiaoyong; RSC Adv.  (2016) –; doi:10.1039/C6RA11151C

data_7225577
_publ_section_title
;
 Catalyst-Free and Selective Synthesis of 2-Aminothiophenes and
 2-Amino-4,5-dihydrothiophenes from 4-Thiazolidinones in Water
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA11151C
_journal_year                    2016
_chemical_formula_sum            'C11 H10 N2 S'
_chemical_formula_weight         202.27
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2016-04-26 deposited with the CCDC.
2016-06-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   9.3748(16)
_cell_length_b                   7.8979(13)
_cell_length_c                   26.980(4)
_cell_measurement_reflns_used    2456
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      47.317
_cell_measurement_theta_min      5.292
_cell_volume                     1997.6(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0354
_diffrn_reflns_av_unetI/netI     0.0242
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            11031
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.992
_diffrn_reflns_theta_min         1.510
_exptl_absorpt_coefficient_mu    0.282
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6893
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.345
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.140
_refine_diff_density_max         0.288
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     131
_refine_ls_number_reflns         1963
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0525
_refine_ls_R_factor_gt           0.0412
_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^)+(0.0707P)^2^+0.2302P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1097
_refine_ls_wR_factor_ref         0.1185
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1566
_reflns_number_total             1963
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra11151c2.cif
_cod_data_source_block           cd15191
_cod_database_code               7225577
_shelx_estimated_absorpt_t_min   0.943
_shelx_estimated_absorpt_t_max   0.962
_shelxl_version_number           2013-4
_shelx_res_checksum              21768