Deprotection of 1,3-oxathiolanes to ketones promoted by base
摘要:
A variety of 1,3-oxathiolanes can be easily converted to the corresponding ketones in good yields with LTMP in THF. This deprotection methodology shows satisfactory chemoselectivity when other protecting groups, such as dimethylketal, 1,3-dioxolane, 1,3-dithiane, and other acid-sensitive groups, are present within the same substrates. (C) 2013 Elsevier Ltd. All rights reserved.
Monothioacetals are easily deprotected into carbonyls using a catalytic amount of trichlorooxyvanadium under an oxygen atmosphere.
在氧气氛下,使用催化量的三氯氧钒可以很容易地将单硫缩醛脱保护为羰基。
Deprotection of 1,3-oxathiolanes to ketones promoted by base
作者:Biao Du、Changchun Yuan、Langzhong Zhang、Li Yang、Bo Liu
DOI:10.1016/j.tetlet.2013.02.053
日期:2013.5
A variety of 1,3-oxathiolanes can be easily converted to the corresponding ketones in good yields with LTMP in THF. This deprotection methodology shows satisfactory chemoselectivity when other protecting groups, such as dimethylketal, 1,3-dioxolane, 1,3-dithiane, and other acid-sensitive groups, are present within the same substrates. (C) 2013 Elsevier Ltd. All rights reserved.
Nickel boride mediated cleavage of 1,3-oxathiolanes: a convenient approach to deprotection and reduction
作者:Jitender M. Khurana、Devanshi Magoo、Kiran Dawra
DOI:10.1007/s00706-015-1608-3
日期:2016.6
cleaved by nickelboride allowing regeneration of corresponding carbonyl compounds. Optimum reaction conditions have also been defined to obtain alcohols exclusively by reduction of oxathiolanes. Reactions are rapid at room temperature and do not require protection from atmosphere. Mild reaction conditions, simple work up, and high yields are some of the major advantages of the procedure. Graphical