作者:Dale L. Boger、Christine E. Brotherton、Marshall D. Kelley
DOI:10.1016/s0040-4020(01)93272-7
日期:——
A simple variation of the Pomeranz-Fritsch cyclization provides a short, efficient route to isoquinolines. Treatment of benzylic halides or mesylates 1 with the sodium anion of N-tosyl aminoacetaldehyde dimethyl acetal (2) followed by acid-catalyzed cyclization provides an effective, two-step preparation of isoquinolines 4.
Pomeranz-Fritsch环化的简单变化为异喹啉提供了一条短而有效的途径。用N-甲苯磺酰基氨基乙醛二甲基乙缩醛的钠阴离子处理苄基卤化物或甲磺酸盐1(2),然后进行酸催化环化,可有效地进行两步制备异喹啉4。