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Catalytic asymmetric synthesis of the Colorado potato beetle pheromone and its enantiomer

โœ Scribed by Li, Shuo-Ning; Fang, Ling-Lan; Zhong, Jiang-Chun; Shen, Jun-Jian; Xu, Hao; Yang, Yan-Qing; Hou, Shi-Cong; Bian, Qing-hua

Book ID
121787987
Publisher
Elsevier Science
Year
2014
Tongue
English
Weight
493 KB
Volume
25
Category
Article
ISSN
0957-4166

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steps). The non-natural (R)-vesperal was also prepared from (S)-limonene. Scheme 2. Synthesis of vesperal (1): reagents: (a) (i) nBuLi, TMEDA; (ii) O 2 (iii) 25% Na 2 SO 3 aq. soln. (30%); (b) Ac 2 O, C 5 H 5 N (quant.); (c) MCPBA, NaHCO 3 , CH 2 Cl 2 (86%); (d) Ph 2 Se 2 , NaBH 4 , EtOH (70% of 7 a