Abstract Furfuraldehyde, 4-hydroxybenzaldehyde, and 4-hydroxy-3-methoxybenzalde-hyde were converted into 2-furylacetic, 4-hydroxyphenylacetic and 4-hydroxy-3-meth- oxyphenylacetic acids respectively on reaction with glyoxal bisulphite and cyanide in alkaline solution. Under the same reaction conditions, 2-hydroxybenzaldehyde yielded 2- hydroxyphenylacetic acid and 3-(2?-hydroxypheny1)-2H-chromen-2-one. When ammonia ...
![N-[3,4-Diacetoxy-5-(2-furanyl)-1-methyl-1H-pyrrol-2-yl]acetamide结构式](https://image.chemsrc.com/caspic/342/50618-96-7.png)