Sonochemical synthesis of norbornane derivatives using allene cyclopentadiene Diels-Alder cycloaddition
作者:C.Paul Raj、N.Arul Dhas、M Cherkinski、A Gedanken、S Braverman
DOI:10.1016/s0040-4039(98)01016-8
日期:1998.7
reactivity of allenic trichloromethyl sulfoxides under ultrasound irradiation has been investigated. A considerable rate enhancement has been observed for cycloaddition of the unsubstituted and γ-monosubstituted allenyl trichloromethyl sulfoxides to cyclopentadiene. With the corresponding γ,γ-disubstituted allenic sulfoxides, a competing 1,2- to 1,3-diene isomerization is observed.
研究了烯丙基三氯甲基亚砜在超声辐射下的双亲反应性。对于未取代的和γ-单取代的烯基三氯甲基亚砜环加成到环戊二烯上,已经观察到相当大的速率提高。用相应的γ,γ-二取代的烯丙基亚砜,观察到竞争的1,2-至1,3-二烯异构化。