Temperature controlled condensation of nitriles: efficient and convenient synthesis of β-enaminonitriles, 4-aminopyrimidines and 4-amidinopyrimidines in one system
Li, Yinghua; Zhu, Yingzu; Xiang, Shiqun; Fan, Weibin; Jin, Jiang; Huang, Deguang; RSC Advances 10 (2020) 6576–6583; doi:10.1039/C9RA10866A

data_7239929
_publ_section_title
;
 Temperature controlled condensation of nitriles: efficient and convenient
 synthesis of \b-enaminonitriles, 4-aminopyrimidines and
 4-amidinopyrimidines in one system
;
_journal_issue                   11
_journal_name_full               'RSC Advances'
_journal_page_first              6576
_journal_page_last               6583
_journal_paper_doi               10.1039/C9RA10866A
_journal_volume                  10
_journal_year                    2020
_chemical_formula_moiety         'C15 H21 N3'
_chemical_formula_sum            'C15 H21 N3'
_chemical_formula_weight         243.35
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_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
_audit_update_record
;
2019-09-27 deposited with the CCDC.	2020-01-21 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 93.032(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8970(3)
_cell_length_b                   9.8470(3)
_cell_length_c                   14.2912(5)
_cell_measurement_reflns_used    2462
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      73.7310
_cell_measurement_theta_min      5.3000
_cell_volume                     1390.81(8)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.5594
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  Mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0187
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4954
_diffrn_reflns_theta_full        69.98
_diffrn_reflns_theta_max         69.98
_diffrn_reflns_theta_min         5.31
_exptl_absorpt_coefficient_mu    0.541
_exptl_absorpt_correction_T_max  0.9735
_exptl_absorpt_correction_T_min  0.9232
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.597
_refine_diff_density_min         -0.574
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2605
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0559
_refine_ls_R_factor_gt           0.0482
_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^)+(0.0775P)^2^+0.4700P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1314
_refine_ls_wR_factor_ref         0.1380
_reflns_number_gt                2216
_reflns_number_total             2605
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9ra10866a2.cif
_cod_data_source_block           Compound4a
_cod_depositor_comments
'Adding full bibliography for 7239928--7239936.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7239929