Pt(IV)-Catalyzed Hydroamination Triggered Cyclization: A Strategy to Fused Pyrrolo[1,2-a]quinoxalines, Indolo[1,2-a]quinoxalines, and Indolo[3,2-c]quinolines
Nitin T. Patil; Rahul D. Kavthe; Valmik S. Shinde; Balasubramanian Sridhar; Journal of Organic Chemistry 75 (2010) 3371–3380; doi:10.1021/jo100373w

data_4025430
_publ_section_title
;
 Pt(IV)-Catalyzed Hydroamination Triggered Cyclization: A Strategy to
 Fused Pyrrolo[1,2-a]quinoxalines, Indolo[1,2-a]quinoxalines, and
 Indolo[3,2-c]quinolines
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3371
_journal_page_last               3380
_journal_paper_doi               10.1021/jo100373w
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C17 H18 N2 O2'
_chemical_formula_sum            'C17 H18 N2 O2'
_chemical_formula_weight         282.33
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                98.359(1)
_cell_angle_beta                 101.378(1)
_cell_angle_gamma                109.283(1)
_cell_formula_units_Z            2
_cell_length_a                   8.1163(7)
_cell_length_b                   8.4645(7)
_cell_length_c                   11.6804(9)
_cell_measurement_reflns_used    5007
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      27.97
_cell_measurement_theta_min      2.61
_cell_volume                     723.07(10)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1990)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_device_type  'CCD Area Detector'
_diffrn_measurement_method       '\w scan'
_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  0.0184
_diffrn_reflns_av_sigmaI/netI    0.0188
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6955
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.62
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.237
_refine_diff_density_rms         0.063
_refine_ls_extinction_coef       0.046(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         2534
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0459
_refine_ls_R_factor_gt           0.0431
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0694P)^2^+0.1074P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1137
_refine_ls_wR_factor_ref         0.1176
_reflns_number_gt                2318
_reflns_number_total             2534
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo100373w_si_004.cif
_cod_data_source_block           ah52m
_cod_database_code               4025430