Synthesis of 2-Substituted Benzofurans and Indoles Using Functionalized Titanium Benzylidene Reagents on Solid Phase
Calum Macleod; Gordon J. McKiernan; Emma J. Guthrie; Louis J. Farrugia; Dieter W. Hamprecht; Jackie Macritchie; Richard C. Hartley; Journal of Organic Chemistry 68 (2003) 387–401; doi:10.1021/jo026384o

data_4022297
_publ_section_title
;
 Synthesis of 2-Substituted Benzofurans and Indoles Using
 Functionalized Titanium Benzylidene Reagents on Solid Phase
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              387
_journal_page_last               401
_journal_paper_doi               10.1021/jo026384o
_journal_volume                  68
_journal_year                    2003
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C20 H29 N O4 S2'
_chemical_formula_sum            'C20 H29 N O4 S2'
_chemical_formula_weight         411.56
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_date             2002-08-12T10:57:15-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 103.32
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   20.4174(2)
_cell_length_b                   9.80010(10)
_cell_length_c                   23.2325(2)
_cell_measurement_reflns_used    53482
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.034
_cell_measurement_theta_min      3.395
_cell_measurement_wavelength     0.71073
_cell_volume                     4523.58(7)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.97
_diffrn_measured_fraction_theta_max 0.97
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Nonius Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      -0.216918E-1
_diffrn_orient_matrix_UB_12      -0.41657E-2
_diffrn_orient_matrix_UB_13      0.452265E-1
_diffrn_orient_matrix_UB_21      0.50194E-1
_diffrn_orient_matrix_UB_22      0.829858E-1
_diffrn_orient_matrix_UB_23      0.317179E-1
_diffrn_orient_matrix_UB_31      -0.369545E-1
_diffrn_orient_matrix_UB_32      0.239481E-1
_diffrn_orient_matrix_UB_33      -0.41762E-2
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0758
_diffrn_reflns_av_unetI/netI     0.0448
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            13249
_diffrn_reflns_reduction_process
;
 Scaled and merged with SORTAV
 R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
 R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        30.4
_diffrn_reflns_theta_max         30.4
_diffrn_reflns_theta_min         3.6
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.259
_exptl_absorpt_correction_T_max  1.023
_exptl_absorpt_correction_T_min  0.822
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.209
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular shape cleaved from larger crystal'
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.325
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     499
_refine_ls_number_reflns         13249
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0508P)^2^+0.6796P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1012
_refine_ls_wR_factor_ref         0.1081
_reflns_number_gt                10215
_reflns_number_total             13249
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo026384o_s1_3.cif
_cod_data_source_block           cpd50a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4022297