NOC approach to spiroketals. A total synthesis of (.+-.)-talaromycin B
作者:Alan P. Kozikowski、James G. Scripko
DOI:10.1021/ja00314a018
日期:1984.1
Synthese de talaromycine B par une reaction NOC a partir de l'oxime du dioxa-1,5 spiro [5.5] undecanepropanal-3 et du vinyl- dioxa-1,5 spiro [5.5] undecane via l'hydrogenolyse de l'isoxazoline-2 obtenue
合成这些 de talaromycine B parune 反应 NOC a partir de l'oxime du dioxa-1,5 spiro [5.5] undecanepropanal-3 et duvinyl-dioxa-1,5 spiro [5.5] undecane via l'hydrogenolyse de l'isoxazoline- 2 迟钝
A concise approach to the core structures of pinnaic acid and halichlorine
作者:Sung-Hyun Yang、G. R. Clark、Vittorio Caprio
DOI:10.1039/b903904j
日期:——
An efficient and flexible synthetic approach to the core structures of pinnaicacid and halichlorine is described using spirocyclic nitrone 4 as a key intermediate. 1,3-Dipolar cycloaddition of 4 with dipolarophile 8 provides access to the azaspirocyclic core of pinnaicacid 5 while the spiroquinolizidine core of halichlorine 6 has been synthesised viacycloaddition of 4 with dipolarophile 29. Nitrone