Efficient synthesis of spirooxindole γ-lactones catalysed by new bis-benzimidazolinium NHC precursors
Banu, Shaik Farheen; Sreeshitha, Mandapalli; Wilhelm, René; Reddy, Peddiahgari Vasu Govardhana; New Journal of Chemistry 49 (2025) 14256–14264; doi:10.1039/D5NJ02315G

data_7063902
_publ_section_title
;
 Efficient synthesis of spirooxindole \g-lactones catalysed by new
 bis-benzimidazolinium NHC precursors
;
_journal_issue                   33
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              14256
_journal_page_last               14264
_journal_paper_doi               10.1039/D5NJ02315G
_journal_volume                  49
_journal_year                    2025
_chemical_formula_sum            'C24 H18 Cl N O3'
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_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2025-03-13 deposited with the CCDC.	2025-07-21 downloaded from the CCDC.
;
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_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019), WinGX'
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_diffrn_ambient_temperature      299(2)
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_diffrn_measurement_device_type  'Bruker D8 Venture Diffractometer'
_diffrn_measurement_method       '\f and \w scans'
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_diffrn_source                   'micro focus sealed tube'
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_exptl_absorpt_process_details
;
 SADABS-2016/2 - Bruker AXS area detector 
 scaling and absorption correction
;
_exptl_crystal_colour            colourless
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1500P)^2^+0.1134P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                2981
_reflns_number_total             3527
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5nj02315g2.cif
_cod_data_source_block           shelx
_cod_depositor_comments          'Adding full bibliography for 7063902.cif.'
_cod_database_code               7063902
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.540
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_shelx_res_checksum              58181