Double (internal/external) alkyne insertion reactions of α-diazoketones
作者:Thomas R. Hoye、Christopher J. Dinsmore
DOI:10.1016/s0040-4039(00)79368-3
日期:1991.7
Acetylenic α-diazoketone 5, when treated with Rh2(OAc)4 and several different alkynes, gives alkyneinsertion/cyclopropenation products. Subsequent catalytic ring opening reactions demonstrate a highly regioselective net double alkyneinsertion process and a new dihydropentalenone synthesis.
the PETNR-catalyzed asymmetricreductions. The physicochemical properties of these NCBs including electrochemical properties, stability, and kinetic behavior were studied in detail. The results showed that hydrophobic interaction caused by the introduced methyl group contributed to the stabilization of binding conformation in enzyme active site, resulting in comparable catalytic activity with that of