Visible-light-promoted oxidative desulphurisation: a strategy for the preparation of unsymmetrical ureas from isothiocyanates and amines using molecular oxygen was written by Gan, Ziyu;Li, Guoqing;Yan, Qiuli;Deng, Weiseng;Jiang, Yuan-Ye;Yang, Daoshan. And the article was included in Green Chemistry in 2020.SDS of cas: 2253-73-8 The following contents are mentioned in the article:
A green and efficient visible-light promoted oxidative desulfurization protocol has been proposed for the construction of unsym. ureas R1NHC(O)N(R2)R3 [R1 = Ph, propan-2-yl, 4-chlorophenyl, etc.; R2 = H, Et, n-Pr, n-Bu, Bn, cyclohexyl; R3 = n-Bu, Bn, 2-(thiophen-2-yl)ethyl, etc.; R2R3 = -(CH2)5-, -(CH2)2O(CH2)2-] and I under mild conditions with broad substrate scope and good functional group tolerance. Most appealingly, the reaction can proceed smoothly without adding any strong oxidants. Control experiments and computational studies support a mechanism involving water-assisted in situ generation of thioureas and photocatalytic oxidative desulfurization. The present method provides a promising synthesis strategy for the formation of diverse and useful unsym. urea derivatives I in the fields of pharmaceutical and synthetic chem. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8SDS of cas: 2253-73-8).
Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 2253-73-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics