A Metal-Free Three-Component Reaction of trans-β-Nitrostyrene Derivatives, Dibromo Amides, and Amines Leading to Functionalized Amidines.
Zhou, Meng; Li, Jinlei; Tian, Chao; Sun, Xiao; Zhu, Xiaoting; Cheng, Yaohang; An, Guanghui; Li, Guangming; The Journal of organic chemistry 84 (2019) 1015–1024; doi:10.1021/acs.joc.8b02998

data_4036017
_publ_section_title
;
 A Metal-Free Three-Component Reaction of trans-\b-Nitrostyrene
 Derivatives, Dibromo Amides, and Amines Leading to Functionalized
 Amidines.
;
_journal_issue                   2
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              1015
_journal_page_last               1024
_journal_paper_doi               10.1021/acs.joc.8b02998
_journal_volume                  84
_journal_year                    2019
_chemical_formula_moiety         'C17 H24 N2 O3'
_chemical_formula_sum            'C17 H24 N2 O3'
_chemical_formula_weight         304.38
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_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                 109.920(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.153(5)
_cell_length_b                   13.527(5)
_cell_length_c                   19.620(5)
_cell_measurement_reflns_used    1806
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.5771
_cell_measurement_theta_min      3.2017
_cell_volume                     1784.8(15)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0272
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6628
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.21
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.985
_exptl_absorpt_correction_T_min  0.981
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs(Sheldrick,1996)
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.133
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             656.0
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3139
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0589
_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^)+(0.0806P)^2^+0.2747P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1418
_refine_ls_wR_factor_ref         0.1595
_reflns_number_gt                2269
_reflns_number_total             3139
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo8b02998_si_002.cif
_cod_data_source_block           123
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4036017