Among all metathesisreactions known to date in organic chemistry, the metathesis of multiple bonds such as alkenes and alkynes has evolved into one of the most powerful methods to construct molecular complexity. In contrast, metathesisreactions involving single bonds are scarce and far less developed, particularly in the context of synthetically valuable ring‐closing reactions. Herein, we report
A lubricant oil composition which is excellent in deposition resistance, corrosion resistance and wear resistance, despite its low phosphorus content and low sulfuric acid ash content, is provided by using a succinimide compound in combination with at least one selected from specific sulfur-containing compounds, specific heterocyclic compounds and reaction products thereof.
Composition and Polymer
申请人:Nakamura Akitake
公开号:US20140121293A1
公开(公告)日:2014-05-01
Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.