Room Temperature Hydroalkylation of Electron-Deficient Olefins: sp3 C−H Functionalization via a Lewis Acid-Catalyzed Intramolecular Redox Event
摘要:
A practical method for the intramolecular hydroalkylation of electron-deficient olefins has been developed. The direct transformation of benzylic, tertiary, and sterically hindered secondary sp3 C-H bonds into C-C bonds under the action of a catalytic amount of a variety of Lewis acids is described. The mechanism of these transformations is proposed to involve a tandem hydride transfer/cyclization sequence.
Room Temperature Hydroalkylation of Electron-Deficient Olefins: sp3 C−H Functionalization via a Lewis Acid-Catalyzed Intramolecular Redox Event
摘要:
A practical method for the intramolecular hydroalkylation of electron-deficient olefins has been developed. The direct transformation of benzylic, tertiary, and sterically hindered secondary sp3 C-H bonds into C-C bonds under the action of a catalytic amount of a variety of Lewis acids is described. The mechanism of these transformations is proposed to involve a tandem hydride transfer/cyclization sequence.
The synthesis of 4-halotetrahydropyrans and 4-halo-5,6-dihydro-2H-pyrans via the lewis acid promoted cyclization of acetals of homoallylic and homopropargylic alcohols
BUNNELLE, W. H.;SEAMON, D. W.;MOHLER, D. L.;BALL, T. F.;THOMPSON, D. W., TETRAHEDRON LETT., 1984, 25, N 25, 2653-2654
作者:BUNNELLE, W. H.、SEAMON, D. W.、MOHLER, D. L.、BALL, T. F.、THOMPSON, D. W.
DOI:——
日期:——
Room Temperature Hydroalkylation of Electron-Deficient Olefins: sp<sup>3</sup> C−H Functionalization via a Lewis Acid-Catalyzed Intramolecular Redox Event
作者:Stefan J. Pastine、Kevin M. McQuaid、Dalibor Sames
DOI:10.1021/ja053337f
日期:2005.9.1
A practical method for the intramolecular hydroalkylation of electron-deficient olefins has been developed. The direct transformation of benzylic, tertiary, and sterically hindered secondary sp3 C-H bonds into C-C bonds under the action of a catalytic amount of a variety of Lewis acids is described. The mechanism of these transformations is proposed to involve a tandem hydride transfer/cyclization sequence.