1262995-49-2

Upstream product

• 6080-56-4 lead(II) acetate trihydrate 
• 1219-96-1 N-(p-methoxyphenyl)-N'-phenylthiourea 
• 16519-53-2 N-(4-methoxyphenyl)-N'-phenylselenourea 

Relevant academic research and scientific papers

Regioselective acetylate of 1,3-disubstituted selenoureas promoted by recyclable ion-supported hypervalent iodine(III) reagent

Abstract A mild, efficient, and environmentally friendly reaction of 1,3-disubstituted selenoureas with a recyclable ion-supported hypervalent iodine(III) reagent produces regioselectively N-acetylureas. This is the first example of ion-supported hypervalent iodine reagent [dibmim]+[BF4] -being employed as an N-acetylating agent. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.

Oxidative desulfurization of disubstituted thioureas using Pb(II) salts and investigation of pKa-dependent regioselective N-acylation

A highly efficient method for the N-acylation of both symmetrical and unsymmetrical thioureas by the use of lead (II) salts and triethylamine has been achieved. The reaction gives regioselective N-acylated product for unsymmetrical thiourea. For unsymmetrical thiuourea, regioselective N-acylation takes place towards the amine having lower pKa.A linear correlation between the pKas of the amines and the regioselective Nacylation is found. Another attractive feature of this transformation is that lead sulfide, which is important to material science, is obtained as a side product (nanocubes of 20 nm).