Synthesis of α-CF<sub>3</sub>-proline derivatives by means of a formal (3 + 2)-cyclisation between trifluoropyruvate imines and Michael acceptors.
Winter, Michael; Faust, Kirill; Himmelsbach, Markus; Waser, Mario; Organic & biomolecular chemistry 17 (2019) 5731–5735; doi:10.1039/c9ob01134j

data_7156880
_publ_section_title
;
 Synthesis of \a-CF<sub>3</sub>-proline derivatives by means of a formal
 (3 + 2)-cyclisation between trifluoropyruvate imines and Michael
 acceptors.
;
_journal_issue                   23
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              5731
_journal_page_last               5735
_journal_paper_doi               10.1039/c9ob01134j
_journal_volume                  17
_journal_year                    2019
_chemical_formula_sum            'C28 H21 Br F3 N O4'
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_chemical_name_common            WIN573
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_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_hydrogens   mixed
_audit_update_record
;
2019-04-24 deposited with the CCDC.    2019-05-24 downloaded from the CCDC.
;
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_cell_angle_gamma                63.9990(10)
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_cell_measurement_temperature    296.(2)
_cell_measurement_theta_max      23.8843
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_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 807)'
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;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            'lustrous colourless'
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_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
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_refine_ls_R_factor_all          0.0881
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0405P)^2^+0.6806P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0911
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                3229
_reflns_number_total             4719
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           FAK_WIN573_121118
_cod_depositor_comments          'Adding full bibliography for 7156880.cif.'
_cod_database_code               7156880
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