Regioselective “hydroamination” of alk-3-ynones with non-symmetrical o-phenylenediamines. Synthesis of diversely substituted 3H-1,5-benzodiazepines via (Z)-3-amino-2-alkenones
Young, Jonathon; Schäfer, Christian; Solan, Agnes; Baldrica, Anthony; Belcher, Miranda; Nişanci, Bilal; Wheeler, Kraig A.; R. Trivedi, Evan; Török, Béla; Dembinski, Roman; RSC Adv. 6 (2016) 107081–; doi:10.1039/C6RA24291J

data_7227089
_publ_section_title
;
 Regioselective &#x201C;hydroamination&#x201D; of alk-3-ynones with
 non-symmetrical o-phenylenediamines. Synthesis of diversely substituted
 3H-1,5-benzodiazepines via (Z)-3-amino-2-alkenones
;
_journal_issue                   108
_journal_name_full               'RSC Adv.'
_journal_page_first              107081
_journal_paper_doi               10.1039/C6RA24291J
_journal_volume                  6
_journal_year                    2016
_chemical_formula_moiety         'C24 H24 N2 O'
_chemical_formula_sum            'C24 H24 N2 O'
_chemical_formula_weight         356.45
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-05-01 deposited with the CCDC.
2016-10-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.535(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.2036(7)
_cell_length_b                   10.1274(5)
_cell_length_c                   15.5213(8)
_cell_measurement_reflns_used    6626
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.301
_cell_measurement_theta_min      3.674
_cell_volume                     1914.64(18)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2013)'
_computing_data_reduction
;
SADABS (Bruker, 2013) and XPREP (Bruker, 2013)
;
_computing_molecular_graphics    'XSEED (Barbour, 2001)'
_computing_publication_material  'XSEED (Barbour, 2001)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0472
_diffrn_reflns_av_unetI/netI     0.0247
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            27874
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.135
_diffrn_reflns_theta_min         3.629
_exptl_absorpt_coefficient_mu    0.590
_exptl_absorpt_correction_T_max  0.753
_exptl_absorpt_correction_T_min  0.691
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2014/5, Bruker AXS'
_exptl_crystal_colour            orange-yellow
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_description       'transparent plate'
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.266
_exptl_crystal_size_mid          0.241
_exptl_crystal_size_min          0.192
_refine_diff_density_max         0.221
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3493
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0523P)^2^+0.5822P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0994
_refine_ls_wR_factor_ref         0.1042
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2918
_reflns_number_total             3493
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra24291j2.cif
_cod_data_source_block           demb31
_cod_database_code               7227089
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.859
_shelx_estimated_absorpt_t_max   0.895
_shelx_res_checksum              93088