Friedel-Crafts alkylations of electron-rich aromatics with 3-hydroxy-2-oxindoles: scope and limitations.
Kinthada, Lakshmana K.; Ghosh, Santanu; Babu, K. Naresh; Sharique, Mohd; Biswas, Soumava; Bisai, Alakesh; Organic & biomolecular chemistry 12 (2014) 8152–8173; doi:10.1039/c4ob01264j

data_7153994
_publ_section_title
;
 Friedel-Crafts alkylations of electron-rich aromatics with
 3-hydroxy-2-oxindoles: scope and limitations.
;
_journal_issue                   41
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              8152
_journal_page_last               8173
_journal_paper_doi               10.1039/c4ob01264j
_journal_volume                  12
_journal_year                    2014
_chemical_formula_sum            'C19 H19 N O2'
_chemical_formula_weight         293.35
_space_group_IT_number           14
_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                 108.827(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8993(6)
_cell_length_b                   22.5466(14)
_cell_length_c                   8.1910(5)
_cell_measurement_temperature    296(2)
_cell_volume                     1555.58(17)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            2226
_diffrn_reflns_theta_full        23.26
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    0.081
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             656
_refine_diff_density_max         0.166
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         2226
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0401
_refine_ls_R_factor_gt           0.0350
_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^)+(0.0478P)^2^+0.5122P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0890
_refine_ls_wR_factor_ref         0.0931
_reflns_number_gt                1959
_reflns_number_total             2226
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ob01264j2.cif
_cod_data_source_block           trya2
_cod_depositor_comments
'Adding full bibliography for 7153994--7153996.cif.'
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7153994