Unexpected Z-stereoselectivity in the Ramberg-Bäcklund reaction of diarylsulfones leading to cis-stilbenes: the effect of aryl substituents and application in the synthesis of the integrastatin nucleus.
Foot, Jonathan S.; Giblin, Gerard M. P.; Whitwood, A. C.; Taylor, R. J. K.; Organic & biomolecular chemistry 3 (2005) 756–763; doi:10.1039/b418426b

data_7150060
_publ_section_title
;
 Unexpected Z-stereoselectivity in the Ramberg-B\"acklund reaction of
 diarylsulfones leading to cis-stilbenes: the effect of aryl
 substituents and application in the synthesis of the integrastatin
 nucleus.
;
_journal_issue                   5
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              756
_journal_page_last               763
_journal_paper_doi               10.1039/b418426b
_journal_volume                  3
_journal_year                    2005
_chemical_formula_moiety         'C17 H14 O3'
_chemical_formula_sum            'C17 H14 O3'
_chemical_formula_weight         266.28
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                100.325(2)
_cell_angle_beta                 90.360(2)
_cell_angle_gamma                99.592(2)
_cell_formula_units_Z            4
_cell_length_a                   9.2508(9)
_cell_length_b                   9.3130(9)
_cell_length_c                   15.5363(15)
_cell_measurement_reflns_used    1679
_cell_measurement_temperature    115(2)
_cell_measurement_theta_max      23.23
_cell_measurement_theta_min      2.23
_cell_volume                     1297.5(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      115(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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0604
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            10629
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.33
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.916
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2.03; (Sheldrick)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     365
_refine_ls_number_reflns         4551
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0713
_refine_ls_R_factor_gt           0.0427
_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^)+(0.0368P)^2^+0.3314P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0917
_refine_ls_wR_factor_ref         0.1019
_reflns_number_gt                3241
_reflns_number_total             4551
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b418426b.txt
_cod_data_source_block           rjt0413m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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-1
_cod_database_code               7150060