Ag2O mediated N-demethylation and oxidative opening of indenopyrido[2,1-a]isoindolones. Efficient access to polysubstituted 1-azafluorenones
Mamane, Victor; Chamas, Zein; Aubert, Emmanuel; Fort, Yves; RSC Advances 3 (2013) 19110–; doi:10.1039/c3ra43278e

data_7239175
_publ_section_title
;
 Ag2O mediated N-demethylation and oxidative opening of
 indenopyrido[2,1-a]isoindolones. Efficient access to polysubstituted
 1-azafluorenones
;
_journal_issue                   41
_journal_name_full               'RSC Advances'
_journal_page_first              19110
_journal_paper_doi               10.1039/c3ra43278e
_journal_volume                  3
_journal_year                    2013
_chemical_formula_moiety         'C20 H13 N O3'
_chemical_formula_sum            'C20 H13 N O3'
_chemical_formula_weight         315.31
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.2721(5)
_cell_length_b                   3.89850(10)
_cell_length_c                   16.3943(3)
_cell_measurement_reflns_used    6377
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      76.2851
_cell_measurement_theta_min      3.2947
_cell_volume                     1487.39(6)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR_92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      109.8(3)
_diffrn_detector_area_resol_mean 10.4508
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.0124
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8419
_diffrn_reflns_theta_full        76.48
_diffrn_reflns_theta_max         76.48
_diffrn_reflns_theta_min         3.80
_exptl_absorpt_coefficient_mu    0.782
_exptl_absorpt_correction_T_max  0.940
_exptl_absorpt_correction_T_min  0.853
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Analytical numeric absorption correction using a multifaceted crystal
			model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.408
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.2655
_exptl_crystal_size_mid          0.1520
_exptl_crystal_size_min          0.0998
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.136
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(14)
_refine_ls_extinction_coef       0.0048(3)
_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   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         3011
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0251
_refine_ls_R_factor_gt           0.0244
_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^)+(0.0422P)^2^+0.2979P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0694
_refine_ls_wR_factor_ref         0.0695
_reflns_number_gt                2987
_reflns_number_total             3011
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra43278e.txt
_cod_data_source_block           vm878
_cod_database_code               7239175