Scandium triflate-catalyzed selective ring opening and rearrangement reaction of spiro-epoxyoxindole and carbonyl compound
Li, Jian; Jiang, Hui; Jie, Haohua; RSC Adv.  (2016) –; doi:10.1039/C6RA21264F

data_7226816
_publ_section_title
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 Scandium triflate-catalyzed selective ring opening and rearrangement
 reaction of spiro-epoxyoxindole and carbonyl compound
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA21264F
_journal_year                    2016
_chemical_formula_sum            'C13 H14 F N O3'
_chemical_formula_weight         251.25
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-03-20 deposited with the CCDC.
2016-10-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.209(7)
_cell_length_b                   8.898(7)
_cell_length_c                   15.070(12)
_cell_measurement_reflns_used    2709
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.44
_cell_measurement_theta_min      2.59
_cell_volume                     1234.9(17)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0243
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5873
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.66
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  0.9905
_exptl_absorpt_correction_T_min  0.9791
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.352
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.080
_refine_diff_density_min         -0.090
_refine_diff_density_rms         0.021
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(9)
_refine_ls_extinction_coef       0.0151(17)
_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   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     167
_refine_ls_number_reflns         2065
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0324
_refine_ls_R_factor_gt           0.0285
_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^)+(0.0356P)^2^+0.0607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0688
_refine_ls_wR_factor_ref         0.0715
_reflns_number_gt                1874
_reflns_number_total             2065
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra21264f2.cif
_cod_data_source_block           121229b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_cell_volume        1234.8(17)
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               7226816