Project supported by the National Natural Science Foundation of China and by the Special Research Grant for Doctoral Sites in Universities.
The total synthesis of(土)-cembrene-A, a termite pheromone, was achieved from geranylacetone and geraniol as starting materials. The key steps were the phase transfer catalyzed coupling reaction of sulphone (6) with c...
Project supported by the National Natural Science Foundation of China and by the Special Research Grant for Doctoral Sites in Universities
Naturally occurring cembrene-C (1) has been synthesized from geraniol. The key steps were coupling reaction of the sulphone (6) and chloride (8) and selective cyclization of dicarbonyl compound (12) catalyzed by low v...
In this paper, we report the first stereo-, regio-, and chemo-selective conversion of oridonin (1) from kamebakaurin (3). The overall yield in 7 steps is 9%.