Catalytic transformation of seed oil derivatives via olefin metathesis

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Catalytic Transformation of Seed Oil Derivatives via Olefin Metathesis

Unsaturated fatty acid esters derived from seed oils undergo metathesis at the C=C bond to give new internal and terminal olefins of interest in chemical manufacturing. The key to realizing this industrial opportunity is the ability to deploy catalysts that tolerate functional groups and remain reactive towards internal olefins even at high conversions. Recent developments in catalyst and react...

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Kinetically controlled E-selective catalytic olefin metathesis.

A major shortcoming in olefin metathesis, a chemical process that is central to research in several branches of chemistry, is the lack of efficient methods that kinetically favor E isomers in the product distribution. Here we show that kinetically E-selective cross-metathesis reactions may be designed to generate thermodynamically disfavored alkenyl chlorides and fluorides in high yield and wit...

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Ring expansion via olefin metathesis.

Various macrocycles were prepared in one step by a novel ring-expansion method using olefin metathesis.

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Evolution of Catalytic Stereoselective Olefin Metathesis: From Ancillary Transformation to Purveyor of Stereochemical Identity

There have been numerous significant advances in catalytic olefin metathesis (OM) during the past two decades. Such progress has transformed this important set of reactions to strategically pivotal processes that generate stereochemical identity while delivering molecules that cannot be easily prepared by alternative routes. In this Perspective, an analysis of the origin of the inception of bid...

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Photolithographic olefin metathesis polymerization.

Patterning functional materials is a central challenge across many fields of science. The ability to lithographically fabricate micro- and nanostructures has been one of the most impactful technological breakthroughs of the last century. In part due to the complexity of the chemical processes in photoresists, there is a limited variety of materials that can currently be patterned by photolithog...

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ژورنال

عنوان ژورنال: Helia

سال: 2007

ISSN: 1018-1806

DOI: 10.2298/hel0746133s