Oxidative C−C Bond-Forming Reaction of Electron-Rich Alkylbenzyl Ether with Trimethylvinyloxysilane
作者:Bai-Ping Ying、Bridget G. Trogden、Daniel T. Kohlman、Sidney X. Liang、Yao-Chang Xu
DOI:10.1021/ol036314j
日期:2004.5.1
Treatment of an electron-rich benzyl ether with DDQ at ambient temperature followed by addition of a silyl enolether undergoes a C-C bond-forming reaction to afford 3-alkoxy-3-phenyl-propionyl compound. This is a general reaction and works well with a variety of silyl enolethers to give carbonyl products in yields ranging from 10 to 85%.
Synthesis of bicyclo[3.2.1]octanes by a tandem Diels-Alder-carbocation cyclization strategy
作者:James H. Rigby、Atul S. Kotnis
DOI:10.1016/s0040-4039(00)96665-6
日期:1987.1
The bicyclo[3.2.1]octane ring system is assembled by a three-step process featuring a thermally induced [4+2] cycloaddition followed by a 1,3-benzodithiolium ion mediated cyclization onto an enol or silyl enol ether double bond.
Substituted cycloalkylamino and cycloalkoxy heterocycles, processes for
申请人:Hoechst-Schering AgrEvo GmbH
公开号:US05889012A1
公开(公告)日:1999-03-30
Substituted cycloalkylamino and cycloalkoxy heterocycles, processes for preparing them and their use as pesticides The invention relates to (I) ##STR1## in which R.sup.1 to R.sup.5, A, X, E, U, p and n are as defined in claim 1, to processes for their preparation and their use as pesticides, such as insecticides, acaricides and fungicides.