Efficient Nucleophilic Fluoromethylation and Subsequent Transformation of Alkyl and Benzyl Halides Using Fluorobis(phenylsulfonyl)methane
作者:G. K. Surya Prakash、Sujith Chacko、Habiba Vaghoo、Nan Shao、Laxman Gurung、Thomas Mathew、George A. Olah
DOI:10.1021/ol8029627
日期:2009.3.5
of alkyl and benzyl halides using α-fluoro-α-(phenylsulfonyl)methane (1) as a highly versatile reagent is reported. Using benzyl halides, stereospecific one-pot synthesis of α-fluorovinyl compounds such as α-fluorostyrylsulfones, α-fluorocinnamates, and α-fluorochalcones has been achieved. The methodology has been extended toward the synthesis of α-substituted fluoroalkane derivatives using selective
Julia Olefination as a General Route to Phenyl (α-Fluoro)vinyl Sulfones
作者:Barbara Zajc、Maggie He、Arun Ghosh
DOI:10.1055/s-2008-1072513
日期:——
Mild and efficient synthesis of phenyl (α-fluoro)vinylsulfones via condensation of aldehydes and a ketone with a novel benzothiazolyl based bis-sulfone reagent is reported and this proceeds with moderate to good Z-stereoselectivity.
据报道,通过醛和酮与新型苯并噻唑基双砜试剂的缩合反应温和有效地合成苯基(α-氟)乙烯基砜,并且具有中等至良好的 Z 立体选择性。
KOIZUMI, TORU;HAGI, TORU;HORIE, YOSHIHARU;TAKEUCHI, YOSHIO, CHEM. AND PHARM. BULL., 35,(1987) N 9, 3959-3962