Kindl, M.; Cerveny, J.; Kuzma, M.; Kacer, P. published an article about the compound: 5-(di-tert-Butylphosphino)-1′,3′,5′-triphenyl-1’H-1,4′-bipyrazole( cas:894086-00-1,SMILESS:CC(P(C1=CC=NN1C2=C(C3=CC=CC=C3)N(C4=CC=CC=C4)N=C2C5=CC=CC=C5)C(C)(C)C)(C)C ).SDS of cas: 894086-00-1. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:894086-00-1) through the article.
Hydration of C≃C bond is a very efficient synthetic step. Currently, there exist ruthenium catalytic complexes, preferably with phosphine or bipyridine ligands, able to hydrate with “”anti-Markovnikov”” selectivity, producing aldehydes. Although development of novel hydration catalysts was fruitful in recent years, only very few mechanistic studies of mol. structural influences are described. On the model hydration or 1-heptyne, we tested a series of various organophosphine ligands with various nitrogen functionalities having different acid-base properties. This screening showed that ligands with methylene-substituted nitrogen in five-membered ring are very promising to synthesize a catalyst for anti-Markovnikov hydration of alkynes.
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