Oxidative C-C bond formation (Scholl reaction) with DDQ as an efficient and easily recyclable oxidant.
Zhai, Linyi; Shukla, Ruchi; Rathore, Rajendra; Organic letters 11 (2009) 3474–3477; doi:10.1021/ol901331p

data_1504056
_publ_section_title
;
 Oxidative C-C bond formation (Scholl reaction) with DDQ as an efficient
 and easily recyclable oxidant.
;
_journal_issue                   15
_journal_name_full               'Organic letters'
_journal_page_first              3474
_journal_page_last               3477
_journal_paper_doi               10.1021/ol901331p
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C66 H66'
_chemical_formula_weight         859.19
_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                 94.962(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0858(4)
_cell_length_b                   17.9286(5)
_cell_length_c                   17.9396(5)
_cell_measurement_reflns_used    9256
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      67
_cell_measurement_theta_min      3
_cell_volume                     4833.9(2)
_computing_cell_refinement       'SAINT v7.60A (Bruker, 2009)'
_computing_data_collection       'APEX2-2009.3-0 (Bruker, 2009)'
_computing_data_reduction        'SADABS-2008/1 (Bruker, 2008)'
_computing_molecular_graphics    'XP v5.1 (Bruker, 1998)'
_computing_publication_material  'XCIF-2008/2 (Bruker, 2008)'
_computing_structure_refinement  'SHELXL-2008/4(Bruker, 2008)'
_computing_structure_solution    'XS/SHELXTL-2008/4 (Bruker, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Bruker APEX2 CCD detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0306
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            39987
_diffrn_reflns_theta_full        67.80
_diffrn_reflns_theta_max         67.80
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    0.495
_exptl_absorpt_correction_T_max  0.9757
_exptl_absorpt_correction_T_min  0.9340
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS. Program for empirical absorption correction of
 area-detector data. University of Goetingen. Germany. 
 Sheldrick, G. M. 1996
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.181
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1848
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     613
_refine_ls_number_reflns         8596
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0445
_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^)+(0.0706P)^2^+1.2404P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1157
_refine_ls_wR_factor_ref         0.1253
_reflns_number_gt                6752
_reflns_number_total             8596
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol901331p_si_002.cif
_cod_data_source_block           raj15n
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi-scan'' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1504056