Thallous salts of .beta.-dicarbonyl compounds, prepared by reaction of the .beta.-dicarbonyl compounds with a thallous alkoxide, are treated with alkyl halides to give C-alkyl products in high yield, with acyl halides at room temperature to give C-acyl products, and with acyl halides at low temperatures to give O-acyl products. Thallous phenolates are esterified with acyl or aroyl halides. Anhydrides are also prepared, as are biaryls and bi-sec-alkyls. N-heterocyclics, including purines and pyrimidines, are N-alkylated. Lactams are O-acylated or N-alkylated.
通过将β-二羰基化合物与
铊烷氧化物反应制备出
铊盐,然后使用烷基卤代物处理
铊盐可以高产得到C-烷基产物,在室温下使用
酰卤代物可以得到C-酰基产物,在低温下使用
酰卤代物可以得到O-酰基产物。
铊酚盐可以与
酰卤代物或芳
酰卤代物酯化。可以制备无
水酸酐、
联苯和双次烷基。可以对包括
嘌呤和
嘧啶在内的N-
杂环化合物进行N-烷基化。内酰胺可以进行O-酰化或N-烷基化。