Abstract (Benzyloxymethyl)lithium, generated in situ from butyllithium and (benzyloxymethyl)tri- n -butylstannane, was found to be an efficient reagent for the monohydroxymethylation of aldono-1,4-lactones to form ketoses. Thus, 4-hydroxy butanoic-1,4-lactone, 2-deoxy-2-fluoro-3,5-di- O -(methoxymethyl)- d -arabinono-1,4-lactone, 2,3,5-tri- O -(methoxymethyl)- d -arabinono-1,4-lactone, 5- O -(methoxymethyl)-2
摘要发现由丁基
锂和(苄氧基甲基)三正
丁基锡烷原位生成的(苄氧基甲基)
锂是一种有效的试剂,用于将1,4-内酯单羟甲基化形成酮糖。因此,
4-羟基丁酸-1,4-内酯,2-脱氧-2-
氟-3,5-二-O-(甲氧基甲基)-d-
阿拉伯糖基-1,4-内酯,2,3,5-三-O-(甲氧基甲基)-d-阿拉伯基-1,4-内酯,5-O-(甲氧基甲基)-2,3-O-亚甲基-d-ribono-1,4-内酯,2,3,5,6 -四-O-(甲氧基甲基)-d-altrono-1,4-内酯,2,3:5,6-di-O-异亚丙基-d-gulono-1,4-内酯和2,3-O-异亚丙基将-1-赤藓基-1,4-内酯分别转化为1-苄氧基-
5-羟基-2-戊酮,1-O-苄基-3-脱氧-3-
氟-4,6-二-O-(甲氧基甲基)-d-
果糖呋喃糖,1-O-苄基-3,4,6-三-O-(甲氧基甲基)-d-
果糖呋喃糖,1-O-苄基-6-O-(甲氧基甲基)-2