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An efficient synthesis of (3 Z,6 Z)- cis-9,10-epoxy-3,6-henicosadiene ( 1), the major component of sex pheromone of saltmarsh caterpillar moth Estigmene acrea (Drury), was accomplished from commercially available pentadec-3-yn-1-ol and bromoundecane. Chirality was introduced by employing Sharpless asymmetric dihydroxylation on cis-olefin intermediate in the synthesis of 1, for the first time. The other key reactions include metal-dissolving coupling, Lindlar's catalyst-assisted partial hydrogenation, one-pot, three-step epoxidation from vicinal diol, and Wittig olefination. The overall yield of 1 was 24.7% in eight steps. The efficiency and simplicity of this synthesis allow the potential use of pheromone 1 in pest management programs. [ABSTRACT FROM AUTHOR]

In this work, a new family of polyhedral oligomeric silsesquioxanes (POSS) based esters have been synthesized that consists eight ester functional groups. These are classified into Type-I and Type-II esters based on the starting materials, octakis(3-chloropropyl)silsesquioxane (Cl-POSS) and octakis(3-hydroxypropyldimethylsiloxy) octasilsesquioxane (OHPS) respectively. These new POSS type ester moieties can be used as insulating oils and oil additives in the transformers and also considered to be alternatives to mineral and vegetable oils that are presently used in the insulation system. [ABSTRACT FROM AUTHOR]

The article offers chemical structure for the article "A Concise Li/liq. NH3 Mediated Synthesis of (4E,10Z)-Tetradeca-4,10-dienyl Acetate (I): The Major Sex Pheromone of Apple Leafminer Moth, Phyllonorycter ringoniella" by Y.-S. Xie and others in "Bulletin of the Korean Chemical Society" in 2014.