From Olefination to Alkylation: In-Situ Halogenation of Julia-Kocienski Intermediates Leading to Formal Nucleophilic Iodo- and Bromodifluoromethylation of Carbonyl Compounds
Yanchuan Zhao; Bing Gao; Jinbo Hu; Journal of the American Chemical Society 134 (2012) 5790–5793; doi:10.1021/ja301601b

data_4117762
_publ_section_title
;
 From Olefination to Alkylation: In-Situ Halogenation of Julia-Kocienski
 Intermediates Leading to Formal Nucleophilic Iodo- and
 Bromodifluoromethylation of Carbonyl Compounds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5790
_journal_page_last               5793
_journal_paper_doi               10.1021/ja301601b
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C13 H8 Cl2 F2 I N O'
_chemical_formula_weight         430.00
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 104.307(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.6090(12)
_cell_length_b                   7.9649(7)
_cell_length_c                   15.2476(14)
_cell_measurement_reflns_used    3418
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      54.914
_cell_measurement_theta_min      4.823
_cell_volume                     1483.8(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0190
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            7739
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.41
_exptl_absorpt_coefficient_mu    2.533
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.66385
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.925
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.311
_exptl_crystal_size_mid          0.269
_exptl_crystal_size_min          0.125
_refine_diff_density_max         0.713
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2907
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0331
_refine_ls_R_factor_gt           0.0272
_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^)+(0.0358P)^2^+0.3601P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0696
_reflns_number_gt                2468
_reflns_number_total             2907
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja301601b_si_002.cif
_cod_data_source_block           cd211386
_cod_database_code               4117762