Total synthesis of sporochnols, fish deterrents from a marine alga
摘要:
Sporochnols, fish deterrents from a marine alga. were synthesized. using intramolecular C H insertion of alkylidenecarbene as a key step to construct the chiral quaternary center. (C) 2002 Elsevier Science Ltd. All rights reserved.
Total synthesis of sporochnols, fish deterrents from a marine alga
摘要:
Sporochnols, fish deterrents from a marine alga. were synthesized. using intramolecular C H insertion of alkylidenecarbene as a key step to construct the chiral quaternary center. (C) 2002 Elsevier Science Ltd. All rights reserved.
A general and efficient rhodium‐catalyzed asymmetric cyanide‐free hydrocyanation of alkenes has been developed. Based on the asymmetric hydroformylation/condensation/aza‐Cope elimination sequences, a broad scope of substrates including mono‐substituted, 1,2‐, and 1,1‐disubstituted alkenes (involving natural product R‐ and S‐limonene) were employed, and a series of valuable chiral nitriles are prepared