Synthesis and Structural Revision of (±)-Laurentristich-4-ol
摘要:
[GRAPHICS]The structure of tetracyclic natural sesquiterpene laurentristich-4-ol was revised based on its synthetic studies. The proposed and the revised structures of laurentristich-4-ol were both synthesized with SmI2-mediated ketyl radical cyclization as the key step to construct the spirocyclic ether skeleton.
Synthesis and Structural Revision of (±)-Laurentristich-4-ol
作者:Pinhong Chen、Junhua Wang、Kun Liu、Chaozhong Li
DOI:10.1021/jo7021247
日期:2008.1.1
[GRAPHICS]The structure of tetracyclic natural sesquiterpene laurentristich-4-ol was revised based on its synthetic studies. The proposed and the revised structures of laurentristich-4-ol were both synthesized with SmI2-mediated ketyl radical cyclization as the key step to construct the spirocyclic ether skeleton.
Photocatalytic decarboxylative alkylation of electron-rich heteroarenes with alkyl N-hydroxyphthalimide esters
We report a direct CH alkylation of heteroarenes viaphotocatalytic decarboxylative couplings. A series of primary, secondary, tertiary alkyl carboxylic acids and drug-derived N-hydroxyphthalimide esters are selectively coupled with various electron-rich heteroarenes, including furans, benzofurans and thiophenes. With advantages of mild reaction conditions, broad scopes of substrates and easy handling
我们报告了通过光催化脱羧偶联对杂芳烃进行直接 C H 烷基化。一系列伯、仲、叔烷基羧酸和药物衍生的N-羟基邻苯二甲酰亚胺酯与各种富电子杂芳烃选择性偶联,包括呋喃、苯并呋喃和噻吩。这种转化具有反应条件温和、底物范围广、易于操作等优点,是一种有价值的有机合成方法。