Silver-catalysed tandem hydroamination and cyclization of 2-trifluoromethyl-1,3-enynes with primary amines: modular entry to 4-trifluoromethyl-3-pyrrolines.
Zhou, Xiaofan; Huang, Chaoqian; Zeng, Yu; Xiong, Jiarui; Xiao, Yuanjing; Zhang, Junliang; Chemical communications (Cambridge, England) 53 (2017) 1084–1087; doi:10.1039/c6cc09595j

data_7119272
_publ_section_title
;
 Silver-catalysed tandem hydroamination and cyclization of
 2-trifluoromethyl-1,3-enynes with primary amines: modular entry to
 4-trifluoromethyl-3-pyrrolines.
;
_journal_issue                   6
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1084
_journal_page_last               1087
_journal_paper_doi               10.1039/c6cc09595j
_journal_volume                  53
_journal_year                    2017
_chemical_formula_sum            'C18 H16 F3 N'
_chemical_formula_weight         303.32
_chemical_name_systematic
1-benzyl-2-phenyl-4-(trifluoromethyl)-2,5-dihydro-1H-pyrrole
_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
_audit_update_record
;
2016-06-20 deposited with the CCDC.
2016-12-19 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                   6.2485(12)
_cell_length_b                   9.5833(19)
_cell_length_c                   26.376(5)
_cell_measurement_reflns_used    1705
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      18.43
_cell_measurement_theta_min      2.26
_cell_volume                     1579.4(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart Apex II CCD'
_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  0.0887
_diffrn_reflns_av_sigmaI/netI    0.0579
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            18515
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.54
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9882
_exptl_absorpt_correction_T_min  0.9624
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.276
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             632
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.105
_refine_diff_density_min         -0.112
_refine_diff_density_rms         0.030
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.0(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2794
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.1212
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0405P)^2^+0.0704P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0830
_refine_ls_wR_factor_ref         0.1092
_reflns_number_gt                1467
_reflns_number_total             2794
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6cc09595j2.cif
_cod_data_source_block           z
_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 

 Adding full bibliography for 7119272--7119273.cif.
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7119272
_solvent_exptl_crystal_recrystallization_method DCM