摘要:
The invention provides a method for synthesizing a fatty olefin derivative. In some embodiments, the method includes: a) contacting an unsaturated olefin with an unsaturated fatty acid ester in the presence of a metathesis catalyst under conditions sufficient to form a metathesis product and b) converting the metathesis product to the fatty olefin derivative. In certain embodiments, the metathesis catalyst is a tungsten catalyst or a molybdenum catalyst. In various embodiments, the fatty olefin derivative is an insect pheromone. Pheromone compositions and methods of using them are also described.
摘要:
The invention provides a method for synthesizing a fatty olefin derivative. In some embodiments, the method includes: a) contacting an unsaturated olefin with an unsaturated fatty acid ester in the presence of a metathesis catalyst under conditions sufficient to form a metathesis product and b) converting the metathesis product to the fatty olefin derivative. In certain embodiments, the metathesis catalyst is a tungsten catalyst or a molybdenum catalyst. In various embodiments, the fatty olefin derivative is an insect pheromone. Pheromone compositions and methods of using them are also described.
摘要:
The present invention provides a method for synthesizing an oxyfunctionalized product. The method includes incubating an enzyme substrate with an enzyme capable of hydroxylating one terminal carbon of the enzyme substrate to form a hydroxylated product and converting at least a portion of the hydroxylated product to the oxyfunctionalized product. The enzyme substrate is an unsaturated or saturated carboxylic acid or an ester thereof, and the hydroxylated product can be a terminal hydroxy-substituted unsaturated carboxylic acid or an ester thereof. The oxy-functionalized products include insect pheromones and other useful compounds.
摘要:
Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts including tungsten-, molybdenum-, and ruthenium-based catalysts. The olefins include insect pheromones useful in a number of agricultural applications.
摘要:
Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts including tungsten-, molybdenum-, and ruthenium-based catalysts. The olefins include insect pheromones useful in a number of agricultural applications.
摘要:
The present application relates to methods of producing one or more fatty alcohols and/or one or more fatty aldehydes from one or more unsaturated lipid moieties by combining the obtainment or production of the one or more unsaturated lipid moieties from a biological source with conversion by non-biological means of the one or more unsaturated lipid moieties to one or more fatty alcohols and/or one or more fatty aldehydes. The present application also relates to recombinant microorganisms having a biosynthesis pathway for the production of one or more unsaturated lipid moieties. The one or more fatty alcohols can further be chemically converted to one or more corresponding fatty acetates. The one or more fatty alcohols, one or more fatty aldehydes and/or one or more fatty acetates produced by the methods described herein may be one or more insect pheromones, one or more fragrances, one or more flavoring agents, or one or more polymer intermediates.
摘要:
In certain aspects, the present invention provides methods for producing terminally hydroxylated alkenes and alkynes by contacting an unsaturated or saturated hydrocarbon substrate with a hydroxylase enzyme. Exemplary terminal hydroxylases useful for carrying out the methods of the invention exhibit strong selectivity towards one terminal carbon of a hydrocarbon substrate and include, but are not limited to, non-heme diiron alkane monooxygenases, cytochromes P450 ( e.g. , cytochromes P450 of the CYP52 and CYP153 family), as well as long chain alkane hydroxylases. In some embodiments, the terminally hydroxylated alkene or alkyne is further converted to a terminal alkenal. In certain embodiments, terminally hydroxylated alkenes and alkynes are useful as insect pheromones which modify insect behavior. In other embodiments, terminally hydroxylated alkenes and alkynes are useful intermediates for producing pheromones via acetylation or oxidation of the alcohol moiety.