Selective oxidation of cyclooctane to cyclootanone with molecular oxygen in the presence of compressed carbon dioxide
作者:Nils Theyssen、Walter Leitner
DOI:10.1039/b111212k
日期:2002.2.27
The oxidation of cyclooctane (1) to cyclooctanone (3) with molecular oxygen and acetaldehyde (2) as a co-reductant occurs efficiently in the presence of compressed CO2. Up to 20% yields of 3 are obtained under optimised multiphase conditions.
作者:Yong Seo Cho、Hye Yeon Kim、Joo Hwan Cha、Ae Nim Pae、Hun Yeong Koh、Jung Hoon Choi、Moon Ho Chang
DOI:10.1021/ol025856i
日期:2002.6.1
[GRAPHIC]Intramolecular Prins-type reactions of compounds having both functionalities of homoallyl alcohol and acetal moiety are described. The intramolecular Prins cyclizations were performed using indium trichloride in chloroform or 25% aqueous THE Both 9-oxabicyclo[3.3.1]nonane and 3,9-dioxabicyclo[3.3.1]nonane compounds were successfully obtained in moderate yields.
The Synthesis of Bicyclic Lactam Ether
作者:Naoya Ogata、Shyunroku Tohoyama
DOI:10.1246/bcsj.39.1556
日期:1966.7
The bicyclic lactam ether, 3-aza-10-oxabicyclic[4.3.1]decane-4-one has been attempted to synthesize by the Beckmann rearrangement of the oxime of 9-oxabicyclo[3.3.1]nonane-3-one; this rearrangement caused polymerization through the cleavage of the ether group in acidic media. Therefore, it may be presumed that the cationic polymerization of lactam ethers in the presence of Lewis acid proceeds through