92555-33-4Relevant articles and documents
One-pot synthesis of 1,3,4-thiadiazoles using Vilsmeier reagent as a versatile cyclodehydration agent
Zarei, Maaroof
, p. 1867 - 1872 (2017/03/11)
A simple and efficient synthetic method for the one-pot synthesis of 1,3,4-thiadiazoles utilizing Vilsmeier reagent was developed. In this method carboxylic acids and hydrazine were converted to 1,3,4-thiadiazoles in the presence of Vilsmeier reagent and Lawesson's reagent. The influence of the thionation reagent, solvent, temperature and time, in this reaction was discussed. The developed methodology for 1,3,4-thiadiazole synthesis has the advantage of simplicity, ambient reaction conditions, easy purification and good to excellent yield of products.
Near-infrared-absorbing organic electrochromic materials
-
Page/Page column 7, (2008/12/07)
The invention provides generally a new type of organic electrochromic Near Infrared (NIR)-active materials capable of absorbing and attenuating the light in the NIR region around 1550 nm and forming thin films on electrodes for variable optical attenuator
An expeditious and convenient one pot synthesis of 2,5-disubstituted-1,3,4-oxadiazoles
Mashraqui, Sabir H.,Ghadigaonkar, Shailesh G.,Kenny, Rajesh S.
, p. 2541 - 2545 (2007/10/03)
A convenient, one pot procedure is reported for the synthesis of a variety of 2,5-disubstituted-1,3,4-oxadiazoles by condensing monoarylhydrazides with acid chlorides in HMPA solvent under the microwave heating. The yields are good to excellent, the process is rapid and does not need any added acid catalyst or dehydrating reagent.
