Pathway for the Stereocontrolled Z and E Production of α,α-Difluorine-Substituted Phenyl Butenoates
Wadih Ghattas; Corinna R. Hess; Gilles Iacazio; Renaud Hardré; Judith P. Klinman; Marius Réglier; Journal of Organic Chemistry 71 (2006) 8618–8621; doi:10.1021/jo061022s

data_4022032
_publ_section_title
;
 Pathway for the Stereocontrolled Z and E Production of
 \a,\a-Difluorine-Substituted Phenyl Butenoates
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8618
_journal_page_last               8621
_journal_paper_doi               10.1021/jo061022s
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C10 H8 F2 O2'
_chemical_formula_weight         198.16
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 90.25(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.51(1)
_cell_length_b                   5.662(1)
_cell_length_c                   9.238(3)
_cell_measurement_reflns_used    1803
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.36
_cell_measurement_theta_min      2.49
_cell_volume                     915.9(6)
_computing_cell_refinement       'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD (Brucker-Nonius, 1998)'
_computing_data_reduction        'Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.885
_diffrn_measured_fraction_theta_max 0.885
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'Phi scan'
_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  0.06
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1654
_diffrn_reflns_theta_full        26.36
_diffrn_reflns_theta_max         26.36
_diffrn_reflns_theta_min         3.78
_exptl_absorpt_coefficient_mu    0.124
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             408
_exptl_crystal_size_max          .5
_exptl_crystal_size_mid          .5
_exptl_crystal_size_min          .1
_refine_diff_density_max         0.173
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.111
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         1654
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.0625
_refine_ls_R_factor_gt           0.0545
_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^)+(0.0370P)^2^+0.4305P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1180
_refine_ls_wR_factor_ref         0.1226
_reflns_number_gt                1461
_reflns_number_total             1654
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo061022ssi20060516_084025.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4022032