Spirocyclopropanes from Intramolecular Cyclopropanation of Pyranopyrazoles and Pyranopyrimidine-diones and Lewis Acid Mediated (3 + 2) Cycloadditions of Spirocyclopropylpyrazolones.
Mukherjee, Prasun; Das, Asish R.; The Journal of organic chemistry 82 (2017) 2794–2802; doi:10.1021/acs.joc.7b00089

data_4032247
_publ_section_title
;
 Spirocyclopropanes from Intramolecular Cyclopropanation of
 Pyranopyrazoles and Pyranopyrimidine-diones and Lewis Acid Mediated (3 +
 2) Cycloadditions of Spirocyclopropylpyrazolones.
;
_journal_issue                   5
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2794
_journal_page_last               2802
_journal_paper_doi               10.1021/acs.joc.7b00089
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C29 H21 N5 O3'
_chemical_formula_sum            'C29 H21 N5 O3'
_chemical_formula_weight         487.51
_space_group_IT_number           14
_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                 103.298(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.843(12)
_cell_length_b                   11.009(10)
_cell_length_c                   18.175(17)
_cell_measurement_reflns_used    3094
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.41
_cell_measurement_theta_min      2.18
_cell_volume                     2501(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0560
_diffrn_reflns_av_sigmaI/netI    0.0571
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16252
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         1.63
_exptl_absorpt_coefficient_mu    0.087
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.300
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1024
_refine_diff_density_max         0.863
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         4577
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0611
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1257P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1786
_refine_ls_wR_factor_ref         0.2123
_reflns_number_gt                2599
_reflns_number_total             4577
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b00089_si_004.cif
_cod_data_source_block           ard_pm_phcn_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4032247