A facile route to polysubstituted indoles via three-component reaction of 2-ethynylaniline, sulfonyl azide, and nitroolefin.
Chen, Zhiyuan; Zheng, Danqing; Wu, Jie; Organic letters 13 (2011) 848–851; doi:10.1021/ol102775s

data_1501905
_publ_section_title
;
 A facile route to polysubstituted indoles via three-component reaction of
 2-ethynylaniline, sulfonyl azide, and nitroolefin.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              848
_journal_page_last               851
_journal_paper_doi               10.1021/ol102775s
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C26 H25 N3 O6 S'
_chemical_formula_weight         507.55
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.258(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.146(4)
_cell_length_b                   10.974(4)
_cell_length_c                   24.749(10)
_cell_measurement_reflns_used    883
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.199
_cell_measurement_theta_min      3.005
_cell_volume                     2484.0(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0330
_diffrn_reflns_av_sigmaI/netI    0.0428
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            9982
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.177
_exptl_absorpt_correction_T_max  0.9791
_exptl_absorpt_correction_T_min  0.9654
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1064
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.965
_refine_diff_density_min         -0.477
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4357
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0851
_refine_ls_R_factor_gt           0.0598
_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^)+(0.1075P)^2^+0.0749P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1745
_refine_ls_wR_factor_ref         0.1866
_reflns_number_gt                2934
_reflns_number_total             4357
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol102775s_si_001.cif
_cod_data_source_block           a01102a
_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        2484.2(18)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1501905