Carbanions α to (alkoxy)silyl or (amino)silyl groups act as nucleophilic α-hydroxy-alkylating agents for organic halides and epoxides via the metal catalyzed coupling reaction and the subsequent oxidative cleavage of the carbon-silicon bond.
Degradative Pathway of 2-Deceno-<i>δ</i>-lactone by the Lactone-producing Fungus,<i>Fusarium solani</i>
作者:Hiroshi Nago、Miwako Matsumoto、Syuryo Nakai
DOI:10.1271/bbb.57.2111
日期:1993.1
The degradative pathway of 5-alkanolides (alkano-δ-lactones) and 2-deceno-δ-lactone (massoialactone) by Fusarium solani PM-1, a massoialactone-producing fungus, was investigated. (±)-Alkano-δ-lactones were shown to be degraded first to a one-carbon-atom-less methyl ketone, 4-hydroxy-2-alkanones, after hydroxylation. The 4-hydroxy-2-alkanones were then converted to 2,4-alkanediones or to 2,4-alkanediols, and are suggested to be successively degraded by modified β-oxidation. (R)-Massoialactone, the main compound in the volatiles produced by the strain, was first saturated to (R)-decano-δ-lactone, and then this saturated lactone was degraded in the same way. These observations lead to a conceptional cycle of acetate moieties throughout the production and degradation of the secondary metabolites.
Provided is a method for producing an episulfide compound, the method including a step of thiating epoxy groups of (B) an epoxy compound by a reaction with (C) a thiating agent in the presence of (A) a polyhydric hydroxyl compound having two or more hydroxyl groups.