Direct conversion of 1-deoxy-1-nitroalditols to methyl glycofuranosides
作者:M. Vojtech、M. Petrušová、B. Pribulová、L. Petruš
DOI:10.1016/j.tetlet.2008.03.044
日期:2008.5
Treatment of the sodium nitronate forms of 1-deoxy-1-nitrohexitols with methanolic sulfuric or hydrochloric acid at −30 °C leads to their regiospecific conversion to the corresponding methyl glycofuranosides. The reaction exhibits more pronounced stereoselectivity for 1-deoxy-1-nitroalditols with the 2,3-erythro configuration than with the 2,3-threo substrates and cis methyl glycofuranosides are the
A new, facile method for cleavage of acetals and dithioacetals in carbohydrate derivatives
作者:Walter A. Szarek、Aleksander Zamojski、Kamal N. Tiwari、Edward R. Ison
DOI:10.1016/s0040-4039(00)83890-3
日期:1986.1
Treatment of carbohydrate acetals and dithioacetals with a dilute solution of iodine in methanol provides a simple, convenient, and high-yielding process for cleavage of the acetal functions.