Synthesis of CF3-Containing 3,3'-Cyclopropyl Spirooxindoles by Sequential [3 + 2] Cycloaddition/Ring Contraction of Ylideneoxindoles with 2,2,2-Trifluorodiazoethane.
Li, Tian-Ren; Duan, Shu-Wen; Ding, Wei; Liu, Yi-Yin; Chen, Jia-Rong; Lu, Liang-Qiu; Xiao, Wen-Jing; The Journal of organic chemistry 79 (2014) 2296–2302; doi:10.1021/jo500019a

data_4029105
_publ_section_title
;
 Synthesis of CF3-Containing 3,3'-Cyclopropyl Spirooxindoles by Sequential
 [3 + 2] Cycloaddition/Ring Contraction of Ylideneoxindoles with
 2,2,2-Trifluorodiazoethane.
;
_journal_issue                   5
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2296
_journal_page_last               2302
_journal_paper_doi               10.1021/jo500019a
_journal_volume                  79
_journal_year                    2014
_chemical_formula_sum            'C16 H16 F3 N O4'
_chemical_formula_weight         343.30
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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-97
_cell_angle_alpha                104.995(4)
_cell_angle_beta                 102.974(4)
_cell_angle_gamma                93.465(4)
_cell_formula_units_Z            2
_cell_length_a                   6.9009(17)
_cell_length_b                   10.396(3)
_cell_length_c                   11.162(3)
_cell_measurement_reflns_used    3248
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.56
_cell_measurement_theta_min      2.40
_cell_volume                     747.8(3)
_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, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_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
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_diffrn_reflns_av_R_equivalents  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0371
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            4447
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.95
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.133
_exptl_absorpt_correction_T_max  0.9868
_exptl_absorpt_correction_T_min  0.9803
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.381
_refine_diff_density_min         -0.433
_refine_diff_density_rms         0.126
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         2585
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0610
_refine_ls_R_factor_gt           0.0505
_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^)+(0.1261P)^2^+0.2620P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1463
_refine_ls_wR_factor_ref         0.1797
_reflns_number_gt                2148
_reflns_number_total             2585
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo500019a_si_001.cif
_cod_data_source_block           e:\130705a\work\mo_130705a_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        747.7(3)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4029105