摘要
以2-吡啶甲醛为起始原料制备1-(2-吡啶基)-2-氮杂-1,3-丁二烯(2),然后与烯烃、炔烃发生Diels-Alder反应分别得到6-(2-吡啶基)-2-哌啶酮和6-(2-吡啶基)-二氢-2-吡啶酮.用2,3-二氯-5,6-二氰基-1,4-苯醌(DDQ)氧化6-(2-吡啶基)-二氢-2-吡啶酮得到6-(2-吡啶基)-2-吡啶酮,最后用三氯氧磷处理得到联吡啶类化合物.
1-(Pyridin-2-yl)-2-azabuta-1,3-dienes(2) prepared from pyridine-2-carboxaldehyde underwent Diels-Alder reaction with electron-poor dienophiles such as alkenes and alkynes to give 6-(pyridin-2-yl)piperidin-2-ones and dihydro-6-(pyridin-2-yl)pyridin-2-ones. Dihydro-6-(pyridin-2-yl)pyridin-2-one was oxidized with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone(DDQ) to afford 6-(pyridin-2-yl) pyridin-2-one. Treatment of 6-(pyridin-2-yl)pyridin-2-one with phosphorus oxychloride gave bipyridine derivative.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2014年第6期1161-1166,共6页
Chinese Journal of Organic Chemistry