Enantioselective rh-catalyzed domino transformations of alkynylcyclohexadienones with organoboron reagents.
Keilitz, Juliane; Newman, Stephen G.; Lautens, Mark; Organic letters 15 (2013) 1148–1151; doi:10.1021/ol400363f

data_1508968
_publ_section_title
;
 Enantioselective rh-catalyzed domino transformations of
 alkynylcyclohexadienones with organoboron reagents.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              1148
_journal_page_last               1151
_journal_paper_doi               10.1021/ol400363f
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H15 Br O2'
_chemical_formula_sum            'C16 H15 Br O2'
_chemical_formula_weight         319.19
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3452(9)
_cell_length_b                   9.9405(13)
_cell_length_c                   18.551(2)
_cell_measurement_reflns_used    8999
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.55
_cell_measurement_theta_min      2.32
_cell_volume                     1354.5(3)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(1)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-DUO'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'Bruker Triumph'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0431
_diffrn_reflns_av_sigmaI/netI    0.0420
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16628
_diffrn_reflns_theta_full        27.60
_diffrn_reflns_theta_max         27.60
_diffrn_reflns_theta_min         2.20
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.029
_exptl_absorpt_correction_T_max  0.6942
_exptl_absorpt_correction_T_min  0.5180
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.565
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.269
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.016(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.922
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         3138
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.922
_refine_ls_R_factor_all          0.0282
_refine_ls_R_factor_gt           0.0227
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0135P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0374
_refine_ls_wR_factor_ref         0.0381
_reflns_number_gt                2761
_reflns_number_total             3138
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol400363f_si_002.cif
_cod_data_source_block           d1238
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
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_cod_database_code               1508968