作者:F.J. Lopez Aparicio、F. Zorrilla Benitez、F. Santoyo Gonzalez
DOI:10.1016/0008-6215(83)88195-6
日期:1983.4
Abstract O -[2,2-Bis(alkylthio)ethyl]glycoaldehydes ( 1a–e ; alkyl = Et, Pr, Pr i , Bu t , and -CH 2 -, respectively) have been prepared from the corresponding O -[2,2-bis(alkylthio)ethyl]glycolaldehyde dimethyl acetals ( 2a–e ) by acid hydrolysis. In anhydrous 1,4-dioxane in the presence of BF 3 · (Et 2 O) 2 , 1a–c were partially transformed into glycolaldehyde bis(dialkyl dithioacetals), 1d afforded
摘要从相应的O-[2]制备了O-[2,2-双(烷硫基)乙基]糖醛(1a-e;烷基分别为Et,Pr,Pri,But和-CH 2-)。酸水解生成2-2-双(烷硫基)乙基]乙二醇醛二甲基乙缩醛(2a–e)。在BF 3·(Et 2 O)2存在下的无水1,4-二恶烷中,1a–c部分转化为乙醇醛双(二烷基二硫缩醛),1d得到反式-2,6-双(叔丁硫基)- 1,4-二恶烷和3,5-双(叔丁硫基)-1,4-氧杂蒽与1e不反应。缩醛2a-e)是由适当的乙醇醛二烷基二硫缩醛通过与溴乙醛二甲基缩醛进行O-烷基化反应制得的。