Regioselective Control of the SNAr Amination of 5-Substituted-2,4-Dichloropyrimidines Using Tertiary Amine Nucleophiles.
Lee, Mijoon; Rucil, Tomas; Hesek, Dusan; Oliver, Allen G.; Fisher, Jed F.; Mobashery, Shahriar; The Journal of organic chemistry 80 (2015) 7757–7763; doi:10.1021/acs.joc.5b01044

data_4031295
_publ_section_title
;
 Regioselective Control of the SNAr Amination of
 5-Substituted-2,4-Dichloropyrimidines Using Tertiary Amine Nucleophiles.
;
_journal_issue                   15
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              7757
_journal_page_last               7763
_journal_paper_doi               10.1021/acs.joc.5b01044
_journal_volume                  80
_journal_year                    2015
_chemical_formula_moiety         'C9 H11 Cl N4'
_chemical_formula_sum            'C9 H11 Cl N4'
_chemical_formula_weight         210.67
_chemical_name_common
;
4-Chloro-2-(diethylamino)pyrimidine-5-carbonitrile 
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                97.082(2)
_cell_angle_beta                 106.868(2)
_cell_angle_gamma                92.782(2)
_cell_formula_units_Z            2
_cell_length_a                   6.9943(5)
_cell_length_b                   7.3867(5)
_cell_length_c                   10.4680(7)
_cell_measurement_reflns_used    5507
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      71.79
_cell_measurement_theta_min      11.54
_cell_volume                     511.58(6)
_computing_cell_refinement       'Bruker SAINT v8.32B'
_computing_data_collection       'Bruker APEX-II v2013-10.0'
_computing_data_reduction        'Bruker SAINT v8.32B'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.940
_diffrn_measurement_device_type  'Bruker APEX-II'
_diffrn_measurement_method       'combination of \w and \f-scans '
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_unetI/netI     0.0212
_diffrn_reflns_Laue_measured_fraction_full 0.951
_diffrn_reflns_Laue_measured_fraction_max 0.940
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6233
_diffrn_reflns_point_group_measured_fraction_full 0.951
_diffrn_reflns_point_group_measured_fraction_max 0.940
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         71.107
_diffrn_reflns_theta_min         11.545
_diffrn_source                   'Incoatec micro-focus'
_exptl_absorpt_coefficient_mu    3.029
_exptl_absorpt_correction_T_max  0.7535
_exptl_absorpt_correction_T_min  0.5277
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2012 (Sheldrick, 2012)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_description       block
_exptl_crystal_F_000             220
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     129
_refine_ls_number_reflns         1862
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0294
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0445P)^2^+0.1507P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0805
_refine_ls_wR_factor_ref         0.0807
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1844
_reflns_number_total             1862
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo5b01044_si_002.cif
_cod_data_source_block           7a
_cod_depositor_comments
'Adding full bibliography for 4031286--4031299.cif.'
_cod_database_code               4031295
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.659
_shelx_estimated_absorpt_t_max   0.816
_diffrn_source_monochromator     'MONTEL Multi-layer'
_vrf-plat029_7a
;
RESPONSE: Due to a slightly inco,plete data collection strategy
several high angle reflections were omitted and the maximum angular
range for data not achieved. However, the structure is correct and
confirms the chemistry. This incomplete strategy also yields the
alert below.
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