Synthesis and Properties of Energetic 1,2,4-Oxadiazoles
作者:Zuoquan Wang、Hong Zhang、Farukh Jabeen、Girinath Gopinathan-Pillai、Justin A. Arami、Benjamin J. Killian、Kelcie D. Stiegler、Dalia S. Yudewitz、Pauline L. Thiemann、Jessica D. Turk、Wenfeng Zhou、Peter J. Steel、C. Dennis Hall、Alan R. Katritzky
DOI:10.1002/ejoc.201501056
日期:2015.12
reported and the effects of nitro groups in the aromatic rings on the experimental heats of decomposition (ΔHd) and heats of combustion (ΔHc) are evaluated. Heats of formation (ΔHf) and densities (ρ) were calculated and correlations between ΔHd and ΔHf were assessed for these compounds. Experimental determination of ρ (by gas pycnometry) on a selection of the compounds led to the calculation of detonation
Novel synthesis of benzotriazolyl alkyl esters: an unprecedented CH<sub>2</sub> insertion
作者:Mohamed Elagawany、Lingaiah Maram、Bahaa Elgendy
DOI:10.1039/d0ra10413b
日期:——
We have developed a novel method for the synthesis of benzotriazolyl alkylesters (BAEs) from N-acylbenzotriazoles and dichloromethane (DCM) under mild conditions. This reaction is one of few examples to show the use of DCM as a C-1 surrogate in carbon-heteroatom bond formation and to highlight the versatility of using DCM as a methylene building block.
salient features of the developed reaction path include an economic, facile, base-free, and equally useful method in milligram to gram scale. N-Acylbenzotriazoles are achieved in good yields from the corresponding carboxylic acids by using only 0.35 equivalent of trichloroisocyanuric acid and 1.2 equivalents of PPh3. The salient features of the developed reaction path include an economic, facile, base-free
这份手稿专门献给(后期)Alan R. Katritzky教授对苯并三唑化学的贡献。 抽象的 通过仅使用0.35当量的三氯异氰尿酸和1.2当量的PPh 3,由相应的羧酸以良好的产率获得N-酰基苯并三唑。发达的反应路径的显着特征包括一种经济,简便,无碱且在毫克到克范围内同样有用的方法。 通过仅使用0.35当量的三氯异氰尿酸和1.2当量的PPh 3,由相应的羧酸以良好的产率获得N-酰基苯并三唑。发达的反应路径的显着特征包括一种经济,简便,无碱且在毫克到克范围内同样有用的方法。