Efficient Routes to Pyrazolo[3,4-b]indoles and Pyrazolo[1,5-a]benzimidazoles via Palladium- and Copper-Catalyzed Intramolecular C-C and C-N Bond Formation
Sarvesh Kumar; Hiriyakkanavar Ila; Hiriyakkanavar Junjappa; Journal of Organic Chemistry 74 (2009) 7046–7051; doi:10.1021/jo901309t

data_4024847
_publ_contact_author_address
;Departmet of chemistry
Indian Institute of Technology - Kanpur
Kanpur - 208 016
INDIA
;
_publ_contact_author_email       hila@iitk.ac.in
_publ_contact_author_fax         +915122597436
_publ_contact_author_name        'Prof. H. Ila'
_publ_contact_author_phone       +915122597498
_publ_section_title
;
Efficient Routes to Pyrazolo[3,4-b]indoles and
Pyrazolo[1,5-a]benzimidazoles via Palladium- and Copper-Catalyzed
Intramolecular C-C and C-N Bond Formation
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7046
_journal_page_last               7051
_journal_paper_doi               10.1021/jo901309t
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C22 H17 N3 O'
_chemical_formula_sum            'C22 H17 N3 O'
_chemical_formula_weight         339.39
_chemical_melting_point          213.5(5)
_chemical_name_common            pyrazolo[3,4-b]indole
_chemical_name_systematic
;
 3-(4-methoxyphenyl-1-phenylpyrazolo[3,4-b]indole)
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 94.674(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   10.054(5)
_cell_length_b                   10.102(5)
_cell_length_c                   16.404(5)
_cell_measurement_reflns_used    1878
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.77
_cell_measurement_theta_min      2.30
_cell_volume                     1660.5(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'SHELXL 5.1, XP (Sheldrick, 1994)'
_computing_publication_material  SHELXS-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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     0.71069
_diffrn_reflns_av_R_equivalents  0.0429
_diffrn_reflns_av_sigmaI/netI    0.0875
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10901
_diffrn_reflns_theta_full        28.26
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9907
_exptl_absorpt_correction_T_min  0.9873
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.356
_refine_diff_density_rms         0.076
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -2(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     477
_refine_ls_number_reflns         7316
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0911
_refine_ls_R_factor_gt           0.0612
_refine_ls_shift/su_max          0.098
_refine_ls_shift/su_mean         0.052
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0451P)^2^+1.0708P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1176
_refine_ls_wR_factor_ref         0.1453
_reflns_number_gt                5517
_reflns_number_total             7316
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo901309t_si_002.cif
_cod_data_source_block           24mayfm
_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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '213-214' was changed to '213.5(5)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4024847