Abstract The photolysis of 2-carbonylphenyl β- d -glucopyranosides gave, by a stereoselective, Norrish-type II carbocyclisation, hydroxy-aromatic, spiro C-1 sugars, having the β- d configuration. The α- d anomers were easily obtained by acid isomerisation of the β- d anomers. The oxidation of hydroxyl groups led to the corresponding aromatic, ketonic spiroacetals. The structure of these compounds was
摘要通过立体选择性的,Norrish II型碳环化反应,对2-羰基苯基β-d-
吡喃
葡萄糖苷进行光解,得到具有β-d构型的羟基芳族螺旋C-1糖。通过β-d异构体的酸异构化可以容易地获得α-d异构体。羟基的氧化产生相应的芳族酮酮螺
缩醛。通过1H-和13C-nmr光谱研究了这些化合物的结构。