Abstract
AbstractThe model compounds of androgenic steroid‐bismetalloporphyrins 3a—3d and androgenic monometalloporphyrins 2a—2d have been synthesized. Catalytic study in two‐phase condition on epoxidation of styrene under the catalysis of model catalysts shows that the catalytic performances of steroid‐bismetalloporphyrin is superior to steroid‐metalloporphyrin and the corresponding simple metalloporphyrin. The excellent catalytic property of steriod‐bismetalloporphyrin can be rationalized as the hydrophobic action of steroid framework and the cooperative action of two metalloporphyrins in catalysis.
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