Synthesis of 1,3,3-Trinitroazetidine via the Oxidative Nitrolysis of N-p-Tosyl-3-azetidinone Oxime
作者:T. Axenrod、C. Watnick、H. Yazdekhasti、P. R. Dave
DOI:10.1021/jo00112a014
日期:1995.4
The tert-butyldimethylsilyl ether of 1,3-dibromo-2-propanol reacted with p-toluenesulfonamide in the presence of K2CO3 to give the corresponding N-p-tosyl-3-azetidinol. The same azetidinol was obtained when the similarly silyl-protected 3-(p-toluenesulfonamido)propan-2-ol 1-(p-toluene-sulfonate) was treated with LiH. Desilylation and oxidation of the N-p-tosyl-3-azetidinol followed by oximation readily afforded N-p-tosyl-3-azetidinone oxime. Oxidative nitrolysis of the latter intermediate delivered 1,3,3-trinitroazetidine through a new sequence of reactions.
Synthesis of functional 1,2-dithiolanes from 1,3-bis-<i>tert</i>-butyl thioethers
作者:Georg M. Scheutz、Jonathan L. Rowell、Fu-Sheng Wang、Khalil A. Abboud、Chi-How Peng、Brent S. Sumerlin
DOI:10.1039/d0ob01577f
日期:——
We report the one-step synthesis of diversely substituted functional 1,2-dithiolanes by reacting readily accessible 1,3-bis-tert-butyl thioethers with bromine. The reaction proceeds to completion within minutes under mild conditions, presumably via a sulfonium-mediated ring closure. Using X-ray crystallography and UV-vis spectroscopy, we demonstrate how substituent size and ring substitution pattern
我们报道了通过容易获得的 1,3-双叔丁基硫醚与溴反应,一步合成了多种取代的功能性 1,2-二硫杂环戊烷。该反应在温和条件下在几分钟内完成,大概是通过锍介导的闭环。使用 X 射线晶体学和紫外可见光谱,我们证明了取代基大小和环取代模式如何影响 1,2-二硫戊环的几何形状和光物理性质。