PRODUCTION OF FATTY OLEFIN DERIVATIVES VIA OLEFIN METATHESIS
申请人:PROVIVI, INC.
公开号:US20170137365A1
公开(公告)日:2017-05-18
In one aspect, the invention provides a method for synthesizing a fatty olefin derivative. The method includes: a) contacting an olefin according to Formula I
with a metathesis reaction partner according to Formula IIb
in the presence of a metathesis catalyst under conditions sufficient to form a metathesis product according to Formula IIIb:
and
b) converting the metathesis product to the fatty olefin derivative. Each R
1
is independently selected from H, C
1-18
alkyl, and C
2-18
alkenyl; R
2b
is C
1-8
alkyl; subscript y is an integer ranging from 0 to 17; and subscript z is an integer ranging from 0 to 17. In certain embodiments, the metathesis catalyst is a tungsten catalyst or a molybdenum catalyst. In various embodiments, the fatty olefin derivative is a pheromone. Pheromone compositions and methods of using them are also described.
Provided is a highly efficient method for the production of aldehydes and ketones, which is inexpensive, exhibits high reactivity, and is capable of easy separation of byproduct after the reaction. More particularly, there is provided a method for producing an aldehyde or a ketone, comprising at least an oxidation step of oxidizing a primary alcohol or a secondary alcohol in the presence of a polymeric carbodiimide represented by the following formula (1) and having a weight-average molecular weight of 300 to 5000, and a sulfoxide compound, together with an acid and a base, or together with a salt of the acid and the base.
The present disclosure provides pheromone compositions. In some aspects, the compositions taught herein comprise a pheromone chemically corresponding to the pheromone naturally produced by a given insect, along with at least one positional isomer of said pheromone. In various aspects, pheromone compositions of the present disclosure are able to modulate the response of the insect based on the ratio of natural pheromone to its positional isomer.
SYNTHESIS OF Z-OLEFIN-CONTAINING LEPIDOPTERAN INSECT PHEROMONES
申请人:California Institute of Technology
公开号:US20130231499A1
公开(公告)日:2013-09-05
The present invention is directed to methods of synthesizing insect pheromones, particularly lepidopteran insect pheromones, their precursors and derivatives from inexpensive, readily available starting materials using olefin metathesis catalysis.
Lipophilic oligonucleotide comprising a phosphate glycerol unit containing at least one aliphatic unsaturated carbon bond according to formula (I), with Oligonucleotide an unmodified or modified nucleic acid of 2-1000 nucleotides in length R=a bond or a linker unit Y═OH, SH or NHR3 X and Z=independently O, S or NR3 R3=hydrogen or branched or unbranched and/or substituted or unsubstituted alkyl, aryl and/or alkyl aryl residue with 10 to 30 carbon atoms R1, R2 branched or unbranched and/or substituted or unsubstituted alkyl, aryl and/or alkylaryl residue with 10 to 30 carbon atoms, with the provisio that at least one of the residues R1 or R2 comprises at least one aliphatic carbon-carbon double bond Use of lipophilic oligonucleotide according to Formula I for drug discovery or for transfection of cells.