Atom Efficient Synthesis of Selectively Difluorinated Carbocycles through a Gold(I)-Catalyzed Cyclization.
McCarter, Adam W.; Sommer, Magdalena; Percy, Jonathan M.; Jamieson, Craig; Kennedy, Alan R.; Hirst, David J.; The Journal of organic chemistry 83 (2018) 8888–8905; doi:10.1021/acs.joc.8b01121

data_4035341
_publ_section_title
;
 Atom Efficient Synthesis of Selectively Difluorinated Carbocycles through
 a Gold(I)-Catalyzed Cyclization.
;
_journal_issue                   16
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8888
_journal_page_last               8905
_journal_paper_doi               10.1021/acs.joc.8b01121
_journal_volume                  83
_journal_year                    2018
_chemical_formula_sum            'C12 H12 F2 O3'
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_space_group_crystal_system      monoclinic
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_atom_sites_solution_hydrogens   mixed
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_diffrn_measurement_device_type  'Oxford Diffraction Gemini S'
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_diffrn_reflns_theta_min         6.145
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    1.095
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.64290
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_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.471
_exptl_crystal_description       'cut from large blade'
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_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0495
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_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0865P)^2^+0.3010P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1291
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_reflns_Friedel_coverage         0.000
_reflns_number_gt                1997
_reflns_number_total             2131
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01121_si_002.cif
_cod_data_source_block           jamie_mccarter
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4035341
_shelx_shelxl_version_number     2014/7
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_shelx_hkl_checksum              98263