Synthesis of Tetra-ortho-substituted, Phosphorus-Containing and Carbonyl-Containing Biaryls Utilizing a Diels-Alder Approach
Bradley O. Ashburn; Rich G. Carter; Lev N. Zakharov; Journal of the American Chemical Society 129 (2007) 9109–9116; doi:10.1021/ja071163r

data_4109689
_publ_section_title
;
 Synthesis of Tetra-ortho-substituted, Phosphorus-Containing and
 Carbonyl-Containing Biaryls Utilizing a Diels-Alder Approach
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9109
_journal_page_last               9116
_journal_paper_doi               10.1021/ja071163r
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C24 H19 Br N2 O6'
_chemical_formula_weight         511.32
_space_group_IT_number           1
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  'P 1'
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                96.817(2)
_cell_angle_beta                 116.020(2)
_cell_angle_gamma                104.097(2)
_cell_formula_units_Z            2
_cell_length_a                   10.5941(13)
_cell_length_b                   10.6543(13)
_cell_length_c                   11.8832(15)
_cell_measurement_reflns_used    6254
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.64
_cell_measurement_theta_min      2.17
_cell_volume                     1129.2(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      123(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_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  0.0181
_diffrn_reflns_av_sigmaI/netI    0.0622
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            12164
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    1.864
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.755
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.504
_exptl_crystal_density_meas      0
_exptl_crystal_description       block
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.563
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.124(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.981
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     596
_refine_ls_number_reflns         9313
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.980
_refine_ls_R_factor_all          0.0415
_refine_ls_R_factor_gt           0.0347
_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^)+(0.0294P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0767
_refine_ls_wR_factor_ref         0.0789
_reflns_number_gt                8200
_reflns_number_total             9313
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja071163rsi20070508_072704.cif
_cod_data_source_block           49aR
_cod_database_code               4109689