A 1,3-amino group migration route to form acrylamidines
Dinesh Pratapsinh Chauhan; Sreejith Jayasree Varma; Arjun Vijeta; Pallavi Banerjee; Pinaki Talukdar; Chem.Commun. 50 (2014) 323–; doi:10.1039/c3cc47182a

data_7110194
_publ_section_title
;
 A 1,3-amino group migration route to form acrylamidines
;
_journal_name_full               Chem.Commun.
_journal_page_first              323
_journal_paper_doi               10.1039/c3cc47182a
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C24 H24 N2 O2 S'
_chemical_formula_sum            'C24 H24 N2 O2 S'
_chemical_formula_weight         404.52
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 92.884(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.925(3)
_cell_length_b                   11.0264(14)
_cell_length_c                   18.650(2)
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.53
_cell_measurement_theta_min      1.95
_cell_volume                     4297.6(9)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0718
_diffrn_reflns_av_sigmaI/netI    0.0433
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            34628
_diffrn_reflns_theta_full        28.53
_diffrn_reflns_theta_max         28.53
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.173
_exptl_absorpt_correction_T_max  0.994
_exptl_absorpt_correction_T_min  0.965
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'multi-scan absorption correction'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1712
_exptl_crystal_size_max          0.245
_exptl_crystal_size_mid          0.171
_exptl_crystal_size_min          0.035
_refine_diff_density_max         1.984
_refine_diff_density_min         -0.479
_refine_diff_density_rms         0.065
_refine_ls_extinction_coef       0.0010(3)
_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   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         5425
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0677
_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
'calc w=1/[\s^2^(Fo^2^)+(0.0722P)^2^+5.0324P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1364
_refine_ls_wR_factor_ref         0.1503
_reflns_number_gt                4242
_reflns_number_total             5462
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc47182a.txt
_cod_data_source_block           tr1a
_cod_original_cell_volume        4297.6(10)
_cod_original_sg_symbol_H-M      'C2/c '
_cod_database_code               7110194