Rh(iii)-catalyzed sequential spiroannulation/lactonization of 3-aryl N-sulfonyl ketimines with 4-hydroxy-2-alkynoates by C–H bond activation
Prashanth, S.; Ajay, Chidrawar; Nagesh, Kommu; Sridhar, B.; Reddy, B. V. Subba; New Journal of Chemistry 48 (2024) 7646–7650; doi:10.1039/D3NJ04312F

data_7063106
_publ_section_title
;
 Rh(iii)-catalyzed sequential spiroannulation/lactonization of 3-aryl
 N-sulfonyl ketimines with 4-hydroxy-2-alkynoates by C--H bond activation
;
_journal_issue                   17
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              7646
_journal_page_last               7650
_journal_paper_doi               10.1039/D3NJ04312F
_journal_volume                  48
_journal_year                    2024
_chemical_formula_moiety         'C20 H17 N O4 S'
_chemical_formula_sum            'C20 H17 N O4 S'
_chemical_formula_weight         367.40
_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   mixed
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_audit_update_record
;
2023-09-07 deposited with the CCDC.	2024-03-11 downloaded from the CCDC.
;
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_cell_volume                     1830.3(5)
_computing_cell_refinement       '<i>SAINT</i> (Bruker, 2016)'
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_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON-100'
_diffrn_measurement_method       '\w and \f'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_Laue_measured_fraction_full 0.996
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_diffrn_reflns_limit_h_min       -17
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_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            21574
_diffrn_reflns_point_group_measured_fraction_full 0.996
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_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6760
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
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_refine_ls_R_factor_gt           0.0415
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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^)+(0.0545P)^2^+0.3775P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1174
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4106
_reflns_number_total             5552
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           KB918_0m
_cod_depositor_comments          'Adding full bibliography for 7063106.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7063106
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_min   0.949
_shelx_estimated_absorpt_t_max   0.965
_shelx_res_checksum              7243
_shelx_hkl_checksum              5005