Pyridine hydrochloride: a new reagent for the synthesis of o-chloro hydroxy derivatives in pyridine and quinoline series
作者:Florence Mongin、Olivier Mongin、François Trécourt、Alain Godard、Guy Quéguiner
DOI:10.1016/s0040-4039(96)01449-9
日期:1996.9
Pyridine hydrochloride has been widely used in the cleavage of ethers. It is shown herein that this reagent is also efficient for the synthesis of chloro compounds starting from the corresponding bromo derivatives in π-deficient series such as pyridine and quinoline. Thus, for example, 7-bromo-8-hydroxyquinoline was almost quantitatively converted into 7-chloro-8-hydroxyquinoline. The scope of the
吡啶盐酸盐已广泛用于醚的裂解中。在此表明,该试剂对于从π-缺乏系列的相应溴衍生物例如吡啶和喹啉开始的氯化合物的合成也是有效的。因此,例如,7-溴-8-羟基喹啉几乎定量地转化为7-氯-8-羟基喹啉。已经研究了反应范围。