Synthesis of [14,14,14-2H3] 12-hydroxytetradecanoic acid and [13,14-2H2] 11-hydroxytetradecanoic acid useful as tracers to study a (11E)-desaturation reaction in Spodoptera littoralis
摘要:
The synthesis of deuterium labeled 11- and 12-hydroxytetradecanoic acids to study a (11E) desaturase in the moth Spodoptera littoralis is reported. [14,14,14-H-2(3)] 12-hydroxytetradecanoic acid was synthesized in four steps from 11-iodo-1-undecene in 49% overall yield. Deuterium was introduced by reaction of an epoxy ester with (CD3)(2)CuLi. The preparation of [13,14-H-2(2)] 11-hydroxytetradecanoic acid was carried out in six steps from 11-bromoundecanoic acid in 55% overall yield. In this case, label was introduced by deuteration of an homoallyl alcohol with D-2, using the Wilkinson catalyst. Incubation of pheromone glands with either of both acids did not lead to the formation of the labeled (11E)-tetradecenoic acid. Copyright (C) 1996 Elsevier Science Ltd
Synthesis of [14,14,14-2H3] 12-hydroxytetradecanoic acid and [13,14-2H2] 11-hydroxytetradecanoic acid useful as tracers to study a (11E)-desaturation reaction in Spodoptera littoralis
摘要:
The synthesis of deuterium labeled 11- and 12-hydroxytetradecanoic acids to study a (11E) desaturase in the moth Spodoptera littoralis is reported. [14,14,14-H-2(3)] 12-hydroxytetradecanoic acid was synthesized in four steps from 11-iodo-1-undecene in 49% overall yield. Deuterium was introduced by reaction of an epoxy ester with (CD3)(2)CuLi. The preparation of [13,14-H-2(2)] 11-hydroxytetradecanoic acid was carried out in six steps from 11-bromoundecanoic acid in 55% overall yield. In this case, label was introduced by deuteration of an homoallyl alcohol with D-2, using the Wilkinson catalyst. Incubation of pheromone glands with either of both acids did not lead to the formation of the labeled (11E)-tetradecenoic acid. Copyright (C) 1996 Elsevier Science Ltd