An unprecedented electronic preference for the "meta" product in Diels-Alder reactions of ethynyldialkylboranes. [(Trimethylsilyl)ethynyl]-9-BBN as a reactive and versatile dienophile
摘要:
[(Trimethylsilyl)ethynyl]-9-BBN undergoes Diels-Alder reactions with acyclic dienes at 100-degrees-C to afford 1,4-cyclohexadienes in high yields. The novel regiochemistry of these reactions is consistent with an ab initio prediction of advanced bonding to boron in a [4 atom + 3 atom transition state.
EPP J. E. VAN; BOYD D. R.; BERCHTOLD G. A., J. ORG. CHEM., 1981, 46, NO 9, 1817-1820
作者:EPP J. E. VAN、 BOYD D. R.、 BERCHTOLD G. A.
DOI:——
日期:——
An unprecedented electronic preference for the "meta" product in Diels-Alder reactions of ethynyldialkylboranes. [(Trimethylsilyl)ethynyl]-9-BBN as a reactive and versatile dienophile
作者:Daniel A. Singleton、Shun Wang Leung
DOI:10.1021/jo00044a008
日期:1992.8
[(Trimethylsilyl)ethynyl]-9-BBN undergoes Diels-Alder reactions with acyclic dienes at 100-degrees-C to afford 1,4-cyclohexadienes in high yields. The novel regiochemistry of these reactions is consistent with an ab initio prediction of advanced bonding to boron in a [4 atom + 3 atom transition state.
Aromatization of arene 1,2-oxides. 1-(Trimethylsilyl)benzene 1,2-oxide
作者:James E. Van Epp、Derek R. Boyd、Glenn A. Berchtold