Ruthenium catalyzed regioselective coupling of terminal alkynes, amine and carbon dioxide leading to anti-Markovnikov adducts
作者:Rahul A. Watile、Bhalchandra M. Bhanage
DOI:10.1039/c4ra03836c
日期:——
RuCl2(p-cymene)/DPPE catalyzed addition of secondary amines and CO2 to terminal alkynes affording anti-Markovnikov adducts of vinyl carbamates in good yield with excellent regioselectivity is reported. The catalyst, consisting of labile p-cymene displays very high regioselectivity towards the anti-Markovnikov adducts and was applicable to a variety of aliphatic/aromatic alkynes and secondary amines.
A novel catlytic synthesis of vinyl carboamtes from carbon dioxide, diethylamine, and alkynes in the presence of Ru3(CO)12
作者:Yoshiyuki Sasaki、Pierre H. Dixneuf
DOI:10.1039/c39860000790
日期:——
The reaction of carbondioxide, diethylamine, and hex-1-yne(1a) or phenylacetylene (1b), catalysed by Ru3(CO)12, gave the vinyl carbamates (2a), (3a) and (4a) or (2b) and (3b).