702707-14-0Relevant articles and documents
Highly Regioselective Aromatic C-H Allylation of N-(Arylmethyl)sulfonimides with Allyl Grignard Reagents Involving Benzylic C-N Cleavage
Tian, Shi-Kai,Xie, Dong,Zhu, Meng-Zeng
supporting information, p. 6877 - 6881 (2021/09/11)
A new pair of reaction partners has been established for the aromatic C-H functionalization of benzyl electrophiles with nucleophiles via palladium-catalyzed benzylic C-N cleavage. A range of N-(1-naphthylmethyl)sulfonimides, N-(2-thienylmethyl)sulfonimides, and N-(2-furanylmethyl)sulfonimides smoothly underwent palladium-catalyzed aromatic C-H allylation with allyl Grignard reagents at room temperature, delivering structurally diverse substituted 1-allylnaphthalenes and 2-allylheteroarenes in moderate to excellent yields with extremely high regioselectivities. Replacing the N-(arylmethyl)sulfonimide with an (arylmethyl)ammonium salt, an arylmethyl chloride, or an arylmethyl phosphate as the benzyl electrophile leads to a dramatic erosion of the regioselectivity.
Substituent effects on the cyclization mode of 7-sulfonyl-3-hepten-1,5- diynes and 11-sulfonylundeca-3,7-dien-1,5,9-triynes
Wu, Huey-Juan,Lin, Chi-Fong,Lee, Jeng-Lin,Lu, Wen-Der,Lee, Chia-Ying,Chen, Chin-Chau,Wu, Ming-Jung
, p. 3927 - 3934 (2007/10/03)
In probing of cycloaromatization of 7-phenylsulfonyl-3-hepten-1,5-diyne systems to generate biradical intermediates under an alkaline condition suggested that the aryl moiety on C3-C4 also plays an important role to switch the Myers cyclization to Schmitt
