Microwave Assisted Synthesis of Bridgehead Alkenes
作者:Leah Cleary、Hoseong Yoo、Kenneth J. Shea
DOI:10.1021/ol200244p
日期:2011.4.1
2 intramolecular Diels−Alder reaction has been developed. Microwave irradiation of the trienes provides a convenient method for the synthesis of bridgehead alkenes. Higher yields, shorter reaction times, and lower reaction temperatures provide a general and efficient route to this interesting class of molecules.
The Diels-Alder reaction with 6-methylene-7-octenoic acid, a functionalised butadiene
作者:G. Cardinale、J. A. M. Laan、J. P. Ward
DOI:10.1002/recl.19871060205
日期:——
A novel functionalisedbutadiene, 6-methylene-7-octenoicacid, was synthesized from myrcene (7-methyl-3-methylene-1,6-octadiene). Diels-Alder adducts were formed with maleic anhydride and cyclopentene-3,5-dione.
Bridged to Fused Ring Interchange. Methodology for the Construction of Fused Cycloheptanes and Cyclooctanes. Total Syntheses of Ledol, Ledene, and Compressanolide
作者:S. L. Gwaltney、S. T. Sakata、K. J. Shea
DOI:10.1021/jo961005a
日期:1996.1.1
type two intramolecular Diels-Alder reaction (T2IMDA) is an efficient method for the formation of medium rings. The methodology is particularly effective for the construction of seven- and eight-memberedrings. A strategy for the synthesis of functionalized cycloheptanes and cyclooctanes has been developed that involves a bridged to fused ring interchange. The T2IMDA provides a synthesis for rigid