作者:Gerhard Gross、Curt Wentrup
DOI:10.1039/c39820000360
日期:——
1-Azafulven-6-one, 2-carbonyl-2H-indole, 5-carbonyl-5H-furo[3,2-b]pyrrole, and thieno- and pyrrolo-analogues are isolated at low temperatures following thermal elimination of water or methanol from the corresponding carboxylic acids or esters; the azafulvenones dimerise at –100 to –40 °C to diketopiperazine derivatives.
在热消除苯并二氢呋喃之后,在低温下分离出1-氮杂富烯-6-,2-羰基-2 H-吲哚,5-羰基-5 H-呋喃并[3,2- b ]吡咯和噻吩并吡咯类似物。来自相应羧酸或酯的水或甲醇;氮杂富烯酮在–100至–40°C下会二聚二酮哌嗪衍生物。