A simple and Noval Synthesis of guanidine derivatives is presented in this study. The construction of the Central basic Scaffolds is achieved by the using of HgCl2 as a promoter. The Formation of product of substituted guanidines controlled by amount of reactant. Further a new fast-tract access to N-1(Boc)-N-(2) cyclohexyl-N(3) phenyl-guanidine was developed.

A novel intramolecular cyclization was discovered during the reaction of soluble polymer supported bis-Boc-guanidines with amines under microwave irradiation, leading to an oxadiazinone skeleton. The cyclized polymer conjugates have been further utilized to generate substituted 1,3,5-oxadiazinones by a traceless synthesis.

An efficient palladium-catalyzed cross-coupling reaction of azides with isocyanides is developed, providing a general synthetic route to unsymmetric carbodiimides with excellent yields. This method shows a broad substrate scope, including not only aryl azides, but also unactivated benzyl and alkyl azides. Furthermore, from readily available substrates, Pd-catalyzed coupling with a tandem amine ...

[reaction: see text] An efficient one-step amination of cyclic amides and ureas has been developed. Treatment of cyclic amides and cyclic ureas with BOP in the presence of DBU in various solvents led to the formation of cyclic amidines and cyclic guanidines in good to excellent yields. Concise syntheses of biologically intriguing kinetin and potent kinase inhibitor olomoucin were thus achieved ...

The efficient synthesis of hydrosilanes by catalytic ydrogenolysis chlorosilanes is described, using an Iridum (III) pincer catalyst. A careful selection a nitrogen base (incl. sterically hindered guanidines and phosphazenes) can unlock the preparation of Me3SiH, Et3SiH Me2SiHCl in high yield (up to 98%), directly from their corresponding chlorosilanes.