59812-96-3Relevant articles and documents
SYNTHESIS OF OPTICALLY PURE (R)- AND (S)-5-n-HEXADECANOLIDE. A PROPOSED PHEROMONE COMPONENT FROM ORIENTAL HORNET
Kikukawa, Tadashi,Tai, Akira
, p. 1935 - 1936 (1984)
Optically pure (R)- and (S)-5-n-hexadecanolide have been easily prepared by the reaction between optically active 1-bromo-3-tetrahydropyranyloxytetradecane (5) and lithium α-lithioacetate and the following lactonization. 5 was derived from optically pure 3-hydroxytetradecanoic acid obtained by the method reported before.
A short and highly enantioselective synthesis of (6R)-undecyltetrahydropyran-2-one, the pheromone of Vespa orientalis
Juszkiewicz, Grzegorz,Jurczak, Janusz
, p. 187 - 190 (2002)
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Enantioselective synthesis of δ-lactones with lipase-catalyzed resolution and mitsunobu reaction
Shimotori, Yasutaka,Aoyama, Masakazu,Miyakoshi, Tetsuo
experimental part, p. 694 - 704 (2012/01/13)
Both enantiomers of a series of δ-lactones (e.g., δ-decalactone, δ-dodelactone, and d-hexadecalactone) were synthesized stereoselectively by Novozym 435-catalyzed resolution. Furthermore, only (S)-enantiomers of d-lactones were synthesized with a combination of Novozym 435-catalyzed resolution and Mitsunobu reaction. Taylor & Francis Group, LLC.
Stereoselective synthesis of δ-lactones from 5-oxoalkanals via one-pot sequential acetalization, tishchenko reaction, and lactonization by cooperative catalysis of samarium ion and mercaptan
Hsu,Fang
, p. 8573 - 8584 (2007/10/03)
By the synergistic catalysis of samarium ion and mercaptan, a series of 5-oxoalkanals was converted to (substituted) δ-lactones in efficient and stereoselective manners. This one-pot procedure comprises a sequence of acetalization, Tishchenko reaction and lactonization. The deliberative use of mercaptan, by comparison with alcohol, is advantageous to facilitate the catalytic cycle. The reaction mechanism and stereochemistry are proposed and supported by some experimental evidence. Such samarium ion/mercaptan cocatalyzed reactions show the feature of remote control, which is applicable to the asymmetric synthesis of optically active δ-lactones. This study also demonstrates the synthesis of two insect pheromones, (2S,5R)-2-methylhexanolide and (R)-hexadecanolide, as examples of a new protocol for asymmetric reduction of long-chain aliphatic ketones.