Acylation of oxindoles using methyl/phenyl esters via the mixed Claisen condensation - an access to 3-alkylideneoxindoles.
Sreedharan, Ramdas; Rajeshwaran, Purushothaman; Panyam, Pradeep Kumar Reddy; Yadav, Saurabh; Nagaraja, C. M.; Gandhi, Thirumanavelan; Organic & biomolecular chemistry 18 (2020) 3843–3847; doi:10.1039/d0ob00789g

data_7157487
_publ_section_title
;
 Acylation of oxindoles using methyl/phenyl esters via the mixed Claisen
 condensation - an access to 3-alkylideneoxindoles.
;
_journal_issue                   20
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3843
_journal_page_last               3847
_journal_paper_doi               10.1039/d0ob00789g
_journal_volume                  18
_journal_year                    2020
_chemical_formula_sum            'C17 H14 N O3'
_chemical_formula_weight         280.29
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-10-18 deposited with the CCDC.	2020-04-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.1920(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.1312(4)
_cell_length_b                   8.2115(4)
_cell_length_c                   16.7219(7)
_cell_measurement_temperature    273(2)
_cell_volume                     1443.50(11)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.992
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0597
_diffrn_reflns_av_unetI/netI     0.0443
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            14276
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.390
_diffrn_reflns_theta_min         2.579
_exptl_absorpt_coefficient_mu    0.089
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_F_000             588
_refine_diff_density_max         0.469
_refine_diff_density_min         -0.187
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2941
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0686
_refine_ls_R_factor_gt           0.0607
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0954P)^2^+0.4481P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1766
_refine_ls_wR_factor_ref         0.1844
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2496
_reflns_number_total             2941
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ob00789g2.cif
_cod_data_source_block           shelx_CCDC1
_cod_depositor_comments
'Adding full bibliography for 7157486--7157487.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7157487
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              61455