Oxidative cyclization by lead(IV) acetate of 1-(4-methoxyphenyl)-4-(tetrazol-5-ylmethyl)azetidin-2-ones to 3-methoxy-9,9a-dihydroazeto[1,2-a]tetrazolo-[5,1-d][1,5]benzodiazepin-11(10H)-ones and related reactions
作者:Le Thanh Giang、József Fetter、Mária Kajtár-Peredy、Károly Lempert、Ferenc Bertha、György M Keser″u、Gábor Czira、Tibor Czuppon
DOI:10.1016/s0040-4020(99)00432-9
日期:1999.7
The tetrazolyl groups of azetidin-2-ones 1a-e and 1h interfere with the normal reaction of related azetidin-2-ones with lead(IV) acetate, viz. acetoxylation at C-4, and cause formation of tetracyclic products 3a-e and 3h. Similar reactions take place with ring homologues 1f, 1g and 1i, and with open-chain analogues 11a and 11b.
氮杂环丁烷-2-酮1a-e和1h的四唑基干扰相关的氮杂环丁烷-2-酮与乙酸铅(IV)的正常反应,即。在C-4处被乙酰氧基化,并导致形成四环产物3a-e和3h。环状同系物1f,1g和1i以及开链类似物11a和11b也会发生类似的反应。