One-Pot Acid-promoted Synthesis of 6-Aminopyrazolopyrimidines from 1<i>H</i>-Pyrazol-5-yl-<i>N</i>,<i>N</i>-dimethylformamidines or 5-Amino-1<i>H</i>-pyrazole-4-carbaldehydes with Cyanamide.
Tseng, Ching-Chun; Tsai, Shuo-En; Li, Sin-Min; Wong, Fung Fuh; The Journal of organic chemistry  (2019) –; doi:10.1021/acs.joc.9b02653

data_4037625
_publ_section_title
;
 One-Pot Acid-promoted Synthesis of 6-Aminopyrazolopyrimidines from
 1<i>H</i>-Pyrazol-5-yl-<i>N</i>,<i>N</i>-dimethylformamidines or
 5-Amino-1<i>H</i>-pyrazole-4-carbaldehydes with Cyanamide.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.9b02653
_journal_year                    2019
_chemical_formula_sum            'C18 H15 N5'
_chemical_formula_weight         301.35
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2019-08-07 deposited with the CCDC.	2019-10-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.247(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.0940(7)
_cell_length_b                   7.7986(6)
_cell_length_c                   24.204(2)
_cell_measurement_reflns_used    2868
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.9261
_cell_measurement_theta_min      2.5233
_cell_volume                     1523.6(2)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0307
_diffrn_reflns_av_unetI/netI     0.0279
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            12338
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.418
_diffrn_reflns_theta_min         1.687
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9485
_exptl_absorpt_correction_T_min  0.8707
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Lump
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.244
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3111
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0691
_refine_ls_R_factor_gt           0.0502
_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^)+(0.0642P)^2^+0.4157P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1394
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2307
_reflns_number_total             3111
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo9b02653_si_002.cif
_cod_data_source_block           mo_151113_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4037625
_shelxl_version_number           2014/6
_shelx_res_checksum              86829
_shelx_hkl_checksum              15797