Utility of N-Bromosuccinimide–Water Combination as a Green Reagent for Synthesis of N,S-Heterocycles and Dithiocarbamates from Styrenes
作者:Firouz Matloubi Moghaddam、Mehri Goudarzi
DOI:10.1055/s-0040-1707258
日期:2020.11
An efficient and unprecedented green protocol has been developed for the synthesis of N,S-heterocycles fromstyrenes and alkyl dithiocarbamates with high to excellent yields. The reaction of primary or secondary amines, CS2, and styrenes was carried out in water in the presence of a catalytic amount of an inorganic base. All products were made by using an N-bromosuccinimide–H2O combination as a green
A novel isocyanide-based three-component reaction: a facile synthesis of substituted 2H-pyran-3,4-dicarboxylates
作者:Mohammad A. Khalilzadeh、Zinatossadat Hossaini、Mohammad M. Baradarani、Adel Hasannia
DOI:10.1016/j.tet.2010.08.041
日期:2010.10
for synthesis of 2H-pyran-3,4-dicarboxylates using the three-component reaction of dithiocarbamates, dialkyl acetylenedicarboxylates, and isocyanides in solvent-free conditions is described. In these reactions, synthesis of dithiocarbamates is possibly based on the one-potreaction of secondary amines, CS2, and alkyl halides in solvent-free conditions without using a catalyst. The mild reaction conditions
An iodine-mediated synthesis strategy for rapid synthesis of sulfenamides was reported. By using iodine as oxidant, various thiophenols and amines (mainly secondary amines) could quickly and smoothly proceed the CDC reaction, affording the target N−S formation products with good yields. The protocol features metal-free, easy performance, short reaction time, variety of substrates and good yields, showing
Die vorliegende Erfindung betrifft neue chemische Wirkstoffe gegen Erkrankungen, die durch Helminthen hervorgerufen werden (z. B. Schistosomiasis). Sie umfasst im wesentlichen Verbindungen mit mindestens einer Dithiocarbamat-und/oder Dithiocarbazat-Teilstruktur.