Asymmetric construction of trifluoromethylated pyrrolidines via Cu(I)-catalyzed 1,3-dipolar cycloaddition of azomethine ylides with 4,4,4-trifluorocrotonates
Qin-Hua Li; Min-Chao Tong; Jun Li; Hai-Yan Tao; Chun-Jiang Wang; Chem.Commun. 47 (2011) 11110–; doi:10.1039/c1cc14295j

data_7106918
_publ_section_title
;
 Asymmetric construction of trifluoromethylated pyrrolidines via
 Cu(I)-catalyzed 1,3-dipolar cycloaddition of azomethine ylides with
 4,4,4-trifluorocrotonates
;
_journal_name_full               Chem.Commun.
_journal_page_first              11110
_journal_paper_doi               10.1039/c1cc14295j
_journal_volume                  47
_journal_year                    2011
_chemical_absolute_configuration 7S,8S,12S,14R,38R,41S,43S,30S
_chemical_formula_sum            'C23 H21 Cl F3 N O5'
_chemical_formula_weight         483.86
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.7950(17)
_cell_length_b                   15.6582(17)
_cell_length_c                   20.390(2)
_cell_measurement_temperature    293(2)
_cell_volume                     4723.6(9)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0287
_diffrn_reflns_av_sigmaI/netI    0.0345
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            26602
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    0.219
_exptl_absorpt_correction_T_max  0.9514
_exptl_absorpt_correction_T_min  0.9413
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.361
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.269
_refine_diff_density_min         -0.275
_refine_diff_density_rms         0.028
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(6)
_refine_ls_extinction_coef       0.0038(2)
_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   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     600
_refine_ls_number_reflns         9253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0700
_refine_ls_R_factor_gt           0.0422
_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^)+(0.0322P)^2^+0.9061P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0827
_refine_ls_wR_factor_ref         0.0945
_reflns_number_gt                6467
_reflns_number_total             9253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1cc14295j.txt
_cod_data_source_block           110418lqh_0m
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7106918