Iodine mediated/Brønsted acid-catalyzed dimerization of vinylarenes: a tandem reaction through Ritter trapping to produce N-(4-iodo-1,3-diarylbutyl) acetamides.
Huang, Jing-Mei; Ye, Zhi-Jun; Chen, Dong-Song; Zhu, Hong; Organic & biomolecular chemistry 10 (2012) 3610–3612; doi:10.1039/c2ob25142f

data_7152322
_publ_section_title
;
 Iodine mediated/Br\/onsted acid-catalyzed dimerization of vinylarenes: a
 tandem reaction through Ritter trapping to produce
 N-(4-iodo-1,3-diarylbutyl) acetamides.
;
_journal_issue                   18
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3610
_journal_page_last               3612
_journal_paper_doi               10.1039/c2ob25142f
_journal_volume                  10
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H20 I N O'
_chemical_formula_sum            'C18 H20 I N O'
_chemical_formula_weight         393.25
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 120.648(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3319(4)
_cell_length_b                   21.2699(8)
_cell_length_c                   9.3647(4)
_cell_measurement_reflns_used    8170
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.47
_cell_measurement_theta_min      2.48
_cell_volume                     1770.50(13)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0223
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            12308
_diffrn_reflns_theta_full        30.52
_diffrn_reflns_theta_max         30.52
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    1.808
_exptl_absorpt_correction_T_max  0.7138
_exptl_absorpt_correction_T_min  0.6131
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.475
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.194
_refine_diff_density_min         -1.047
_refine_diff_density_rms         0.194
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.156
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         4293
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.155
_refine_ls_R_factor_all          0.0368
_refine_ls_R_factor_gt           0.0339
_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^)+(0.0501P)^2^+2.6421P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0975
_refine_ls_wR_factor_ref         0.1084
_reflns_number_gt                4053
_reflns_number_total             4293
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ob25142f.txt
_cod_data_source_block           ltp64
_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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1770.50(12)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7152322