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.