Palladium-Catalyzed Annulation of Allenes with Indole-2-carboxylic Acid Derivatives: Synthesis of Indolo[2,3-c]pyrane-1-ones via Ar-I Reactivity or C-H Functionalization
R. Rama Suresh; K. C. Kumara Swamy; Journal of Organic Chemistry 77 (2012) 6959–6969; doi:10.1021/jo301149s

data_4027392
_publ_section_title
;
 Palladium-Catalyzed Annulation of Allenes with Indole-2-carboxylic Acid
 Derivatives: Synthesis of Indolo[2,3-c]pyrane-1-ones via Ar-I Reactivity
 or C-H Functionalization
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6959
_journal_page_last               6969
_journal_paper_doi               10.1021/jo301149s
_journal_volume                  77
_journal_year                    2012
_chemical_formula_moiety         'C23 H28 N O5 P'
_chemical_formula_sum            'C23 H28 N O5 P'
_chemical_formula_weight         429.43
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 93.189(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1222(9)
_cell_length_b                   17.729(2)
_cell_length_c                   16.957(2)
_cell_measurement_temperature    293(2)
_cell_volume                     2137.8(4)
_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_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  0.1248
_diffrn_reflns_av_sigmaI/netI    0.0938
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            20280
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.164
_exptl_absorpt_correction_T_max  0.9743
_exptl_absorpt_correction_T_min  0.9680
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS, SHELDRICK (1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_description       block
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.213
_refine_diff_density_min         -0.210
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.210
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     274
_refine_ls_number_reflns         3772
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.210
_refine_ls_R_factor_all          0.1811
_refine_ls_R_factor_gt           0.1215
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0342P)^2^+3.3732P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1844
_refine_ls_wR_factor_ref         0.2058
_reflns_number_gt                2448
_reflns_number_total             3772
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo301149s_si_002_3.cif
_cod_data_source_block           compd-32
_cod_original_cell_volume        2137.9(5)
_cod_database_code               4027392