diverse conditions yields a variety of products, most of which are formed as mixtures of diastereoisomers. The conformations assumed by the furanose rings in the 2,3- O -benzylidene-β- D -ribose derivatives are discussed in relation to the coupling constants obtained by comparing the experimental and computed n.m.r. spectra.
摘要
D-核糖在不同条件下的苯甲酰化可产生多种产物,其中大多数以非对映异构体的混合物形式形成。讨论了通过比较实验和计算的NMR光谱获得的偶合常数,讨论了2,3-O-亚苄基-β-
D-核糖衍
生物中
呋喃糖环的构象。