Ultrasonically accelerated cycloaddition - rearrangement of enol ethers
作者:David Goldsmith、José J. Soria
DOI:10.1016/s0040-4039(00)74352-8
日期:1991.11
Cycloaddition-rearrangement reactions of methyl cyclohexenyl ethers with p-bromobenzenesulfonyl azide in neat homogeneous admixture are substanially accelerated by low-wattage ultrasound. Using ultrasound approximately the same yields of rearranged products are obtained in less time at lower temperature than observed at ambient sonic frequencies and elevated temperature. A previously unreported product structural type has also been found.
Cycloaddition-rearrangement of cyclohexadienol ethers. A versatile and selective synthesis of cyclopentenoid systems
GOLDSMITH D. J.; SORIA J. J., TETRAHEDRON LETT., 27,(1986) N 39, 4701-4704
作者:GOLDSMITH D. J.、 SORIA J. J.
DOI:——
日期:——
Enantioselective Synthesis of <i>cis</i>‐Decalins by Merging the Birch Reduction and Inverse‐Electron‐Demand Diels–Alder Reaction
作者:Xu‐Ge Si、Shi‐Xiong Feng、Zhuo‐Yan Wang、Xiaoyu Chen、Meng‐Meng Xu、Yu‐Zhen Zhang、Jun‐Xiong He、Limin Yang、Quan Cai
DOI:10.1002/anie.202303876
日期:2023.8.7
Asymmetric synthesis of highly functionalized chiral cis-decalins was realized by merging Birchreduction and a tandem olefin migration/asymmetric IEDDA reaction. Up to six contiguous and two quaternary stereocenters could be formed in one step by efficient kinetic resolution. The synthetic value of the approach is illustrated by the concise total synthesis of (+)-occidentalol and the synthesis of