Lithium naphthalenide induced reductive cleavage of α,β-epoxy ketones: an efficient procedure for the preparation of β-hydroxy ketones
作者:Renata Jankowska、Hsing-Jang Liu、George L. Mhehe
DOI:10.1039/a904646a
日期:——
Lithium naphthalenide presents itself as a mild and efficient reagent for the cleavage of α,β-epoxy ketones to give the corresponding β-hydroxy ketones in good yields.
Allene Synthesis via C−C Fragmentation: Method and Mechanistic Insight
作者:Robert V. Kolakowski、Madhuri Manpadi、Yue Zhang、Thomas J. Emge、Lawrence J. Williams
DOI:10.1021/ja906189h
日期:2009.9.16
A new method of allene synthesis is described. Suitably functionalized vinyl triflates undergo fragmentation to give allenes in high yield. Computational and experimental data provide a mechanistic framework for allene formation and the complementary formation of alkynes. The method is stereospecific.
Stereochemistry of the reductive alkylation of .alpha.,.beta.-epoxy ketones
作者:James D. McChesney、Thomas N. Thompson
DOI:10.1021/jo00219a011
日期:1985.9
Short New Route to the Chiral Spiro‐Tetrahydrofuran Subunit Common to Some Terpenoids
作者:Shital K. Chattopadhyay、Swastik Karmakar、Kaushik Sarkar
DOI:10.1080/00397910500180295
日期:2005.8.1
Synthetic strategy based on a stereoselective iodoetherification reaction of a carvone-derived hydroxyalkene unit has been developed for the asymmetric synthesis of the key spiro-tetrahydrofuran subunit common to some naturally occurring terpenoids.
A new carvone based construction of the ring-A of taxoids
作者:Goverdhan Mehta、Shital K. Chattopadhyay、Jayant D. Umarye
DOI:10.1016/s0040-4039(99)00902-8
日期:1999.6
A synthesis of the fully functionalized A-ring of taxoids from the commercially available monoterpenic chiron R-carvone is outlined. In this approach, regio- and stereoselective restructuring of alkyl substituents and functionalities is effected on the periphery while retaining the six membered core of carvone. (C) 1999 Elsevier Science Ltd. All rights reserved.