H)-ones or 5-(2-chloroalkenyl)pyridazin-3(2H)-ones were isolated during the cleavage of the methoxymethyl group in a series of 5-alkynyl-2-methoxymethylpyridazin-3(2H)-ones by treatment with hydrochloric acid. The efficient and selective cleavage of the methoxymethyl group in these compounds can be performed under mild conditions by employing aluminium chloride.
5- Alkynylpyridazin-3(2 ħ) -酮或5-(2- chloroalkenyl)
哒嗪-3(2 H ^) -酮中的甲氧基甲基的一系列的5-炔基- 2- methoxymethylpyridazin-3裂解过程中分离出(2 H)-ones用
盐酸处理。这些化合物中甲氧基甲基的有效和选择性裂解可在温和条件下通过使用
氯化铝进行。