One-pot Methylenation-Cyclization Employing Two Molecules of CO2 with Arylamines and Enaminones.
Zhao, Yulei; Liu, Xu; Zheng, Lijun; Du, Yulan; Shi, Xinrui; Liu, Yunlin; Yan, Zhengquan; You, Jinmao; Jiang, Yuan-Ye; The Journal of organic chemistry  (2019) –; doi:10.1021/acs.joc.9b02858

data_4037700
_publ_section_title
;
 One-pot Methylenation-Cyclization Employing Two Molecules of CO2 with
 Arylamines and Enaminones.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.9b02858
_journal_year                    2019
_chemical_formula_sum            'C23 H20 N2 O'
_chemical_formula_weight         340.41
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/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                 90.648(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.5730(9)
_cell_length_b                   16.5389(14)
_cell_length_c                   20.6478(18)
_cell_measurement_reflns_used    1905
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      22.076
_cell_measurement_theta_min      2.463
_cell_volume                     3610.4(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0368
_diffrn_reflns_av_sigmaI/netI    0.0476
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8894
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.46
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9735
_exptl_absorpt_correction_T_min  0.9698
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.151
_refine_diff_density_rms         0.036
_refine_ls_extinction_coef       0.0038(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3184
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1012
_refine_ls_R_factor_gt           0.0519
_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^)+(0.0687P)^2^+0.7712P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1367
_refine_ls_wR_factor_ref         0.1555
_reflns_number_gt                1808
_reflns_number_total             3184
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo9b02858_si_002.cif
_cod_data_source_block           180820c
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

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 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4037700