Introducing deep eutectic solvents as biorenewable media for Au(<scp>i</scp>)-catalysed cycloisomerisation of γ-alkynoic acids: an unprecedented catalytic system
作者:María J. Rodríguez-Álvarez、Cristian Vidal、Josefina Díez、Joaquín García-Álvarez
DOI:10.1039/c4cc05904b
日期:——
Cycloisomerisation reactions of γ-alkynoic acids can be conveniently performed in the eutectic mixture 1ChCl/2Urea at room temperature, under air and in the absence of co-catalysts by using a novel iminophosphorane–Au(i) complex.
Disclosed herein are novel prostaglandin I2 (PGI2) derivatives exhibiting excellent physiological activities, said derivatives being represented by the general formula:
wherein R1, R2 and R3 are as defined herein.
Disclosed herein are novel prostaglandin I.sub.2 (PGI.sub.2) derivatives exhibiting excellent physiological activities, said derivatives being represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined herein.