Bismuth nitrate pentahydrate: a new and environmentally benign reagent for guanidylation of N-benzoylthioureas

Synthesis, Spectral Properties and Structure of New Novel 3,3′-Dibenzoyl-1,1′-(propan-1,3-diyl)-bisthiourea

“…Recently, many thioureas such as N-alkyl-N 0 -acyl(aroyl)thioureas, R/ArCONHCSNHR 0 , and N,N-dialkyl-N 0 -acyl(aroyl) thioureas, R/ArCONHCS NR 0 R 0 , have been synthesised. They are largely important in synthesis of heterocyclic compounds and many of these substrates have interesting biological activities [3][4][5]. Aroyl thioureas which have at least three potential donor atoms (N, O, S), have been found to display a remarkably rich coordination chemistry, showing a more varied coordination behaviour than the structurally related ß-diketones, which have been thoroughly investigated [6][7][8].…”

A new and environmentally benign synthesis of aroylguanidines using iron trichloride

“…For bypassing this issue Cunha et al 9 introduced bismuth nitrate pentahydrate (Bi(NO 3 ) 3 $5H 2 O) as environmentally benign reagent for the guanylation of N-aroylthioureas. Despite the reasonable results reports on the use of this synthetic protocol are scarce.…”

Efficient, eco-Friendly and Regioselective Method for Thiolysis of 1,2-Epoxides with Diaryl Disulfides in the Presence of Zn/Bi(TFA)3-TBPB or Zn/Bi(OTf)3-TBPB

“…Bismuth(III) compounds have recently attracted the interest of organic synthesis chemists [23,24]. Among them, Bi(TFA) 3 and Bi(OTf) 3 have received much attention due to their high activity, low cost, watertolerance, easy handling and low toxicity [25 -32].…”