Nucleophile-Mediated Ring Expansion of 5-Acyl-substituted 4-Mesyloxymethyl-1,2,3,4-tetrahydropyrimidin-2-ones in the Synthesis of 7-Membered Analogues of Biginelli Compounds and Related Heterocycles.
Fesenko, Anastasia A.; Grigoriev, Mikhail S.; Shutalev, Anatoly D.; The Journal of organic chemistry 82 (2017) 8085–8110; doi:10.1021/acs.joc.7b01348

data_4037517
_publ_section_title
;
 Nucleophile-Mediated Ring Expansion of 5-Acyl-substituted
 4-Mesyloxymethyl-1,2,3,4-tetrahydropyrimidin-2-ones in the Synthesis of
 7-Membered Analogues of Biginelli Compounds and Related Heterocycles.
;
_journal_issue                   15
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8085
_journal_page_last               8110
_journal_paper_doi               10.1021/acs.joc.7b01348
_journal_volume                  82
_journal_year                    2017
_chemical_formula_sum            'C19 H21 N3 O5'
_chemical_formula_weight         371.39
_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_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
_cell_angle_alpha                90.00
_cell_angle_beta                 94.77(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.094(3)
_cell_length_b                   7.0075(17)
_cell_length_c                   21.832(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      13
_cell_measurement_theta_min      12
_cell_volume                     1843.8(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4 diffravtometer'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           AgK\a
_diffrn_radiation_wavelength     0.56087
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0513
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3490
_diffrn_reflns_theta_full        19.97
_diffrn_reflns_theta_max         19.97
_diffrn_reflns_theta_min         1.47
_exptl_absorpt_coefficient_mu    0.061
_exptl_absorpt_correction_T_max  0.9761
_exptl_absorpt_correction_T_min  0.9761
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.906
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3490
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.906
_refine_ls_R_factor_all          0.1109
_refine_ls_R_factor_gt           0.0496
_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^)+(0.0570P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1004
_refine_ls_wR_factor_ref         0.1202
_reflns_number_gt                1862
_reflns_number_total             3490
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b01348_si_002.cif
_cod_data_source_block           20b
_cod_original_cell_volume        1843.9(7)
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4037517