SnCl<sub>4</sub>-Promoted [3+2] Annulation of γ-Butyrolactone-Fused Donor-Acceptor Cyclopropanes with Nitriles: Access to γ-Butyrolactone-Fused 1-Pyrrolines.
Tamilarasan, V. John; Srinivasan, Kannupal; The Journal of organic chemistry 84 (2019) 8782–8787; doi:10.1021/acs.joc.9b01155

data_4034143
_publ_section_title
;
 SnCl<sub>4</sub>-Promoted [3+2] Annulation of \g-Butyrolactone-Fused
 Donor-Acceptor Cyclopropanes with Nitriles: Access to
 \g-Butyrolactone-Fused 1-Pyrrolines.
;
_journal_issue                   13
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              8782
_journal_page_last               8787
_journal_paper_doi               10.1021/acs.joc.9b01155
_journal_volume                  84
_journal_year                    2019
_chemical_formula_moiety         'C28 H25 N O4'
_chemical_formula_sum            'C28 H25 N O4'
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_diffrn_measured_fraction_theta_max 0.935
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_diffrn_radiation_type           MoK\a
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_exptl_absorpt_process_details   'SADABS V2014/5(Bruker AXS.Inc)'
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_refine_ls_R_factor_all          0.0869
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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^)+(0.0891P)^2^+0.2436P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     'I > 2\s(I)'
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_shelx_estimated_absorpt_t_max   0.991
_shelx_res_checksum              44283
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