Catalytic enantioselective [3+2] and [4+2]-annulation of cyclic <i>N</i>-sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones.
Yang, Ji Seon; Kim, Sung-Gon; Chemical communications (Cambridge, England) 60 (2024) 7954–7957; doi:10.1039/d4cc02734e

data_7133284
_publ_section_title
;
 Catalytic enantioselective [3+2] and [4+2]-annulation of cyclic
 <i>N</i>-sulfonyl ketimines with &#x3b3;- or
 &#x3b4;-hydroxy-&#x3b1;,&#x3b2;-unsaturated ketones.
;
_journal_issue                   61
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              7954
_journal_page_last               7957
_journal_paper_doi               10.1039/d4cc02734e
_journal_volume                  60
_journal_year                    2024
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C21 H21 N O6 S'
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_audit_update_record
;
2024-06-03 deposited with the CCDC.	2024-07-03 downloaded from the CCDC.
;
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_diffrn_reflns_av_unetI/netI     0.0604
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; 
 Flack x determined using 879 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.03(5)
_refine_ls_extinction_method     none
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_refine_ls_R_factor_all          0.1172
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_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^)+(0.0357P)^2^+1.6889P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0918
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_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2955
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_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           KGU_24_06_a
_cod_depositor_comments
'Adding full bibliography for 7133283--7133284.cif.'
_cod_original_cell_volume        3973.5(4)
_cod_database_code               7133284
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.957
_shelx_estimated_absorpt_t_max   0.989
_shelx_res_checksum              7791
_shelx_hkl_checksum              39494