Transition-metal-free visible light-promoted photoredox oxidative dehydrogenative cyclization: expeditious approach to 1,2,4-thiadiazoles was written by Xiong, Zhiqiang;Zhong, Qihao;Sheng, Shouri;Chen, Junmin. And the article was included in ARKIVOC (Gainesville, FL, United States) in 2021.Formula: C4H7NS The following contents are mentioned in the article:
A novel visible-light-catalyzed oxidative N-S bond formation for the synthesis of 3,5-disubstituted 1,2,4-thiadiazoles I (R1 = Me, Ph, cyclopropyl, etc.; R2 = i-Pr, Ph, 3-chlorophenyl, etc.) has been developed. This protocol features a metal-free approach, green oxidant, room temperature process, broad substrate scope, good functional group tolerance, excellent yields and a one-pot reaction without the isolation of the intermediates. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Formula: C4H7NS).
Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Formula: C4H7NS
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics