Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Richard J. Petroski"'
Publikováno v:
Molecules, Vol 16, Iss 6, Pp 5062-5078 (2011)
Phosphonate reagents were developed for the two-carbon homologation of aldehydes or ketones to unbranched- or methyl-branched α,β-unsaturated aldehydes. The phosphonate reagents, diethyl methylformyl-2-phosphonate dimethylhydrazone and diethyl ethy
Externí odkaz:
https://doaj.org/article/fd74a26e42b64b81abd520033f6940f8
Autor:
Richard J. Petroski
Publikováno v:
Synthetic Communications. 41:63-66
The phosphonate reagent diethyl methylformyl-2-phosphonate dimethylhydrazone contains a protected aldehyde group instead of the usual ester group. It can be used for the two-carbon homologation of aldehydes to α, β-unsaturated aldehydes. The reagen
Publikováno v:
Synthetic Communications. 39:1389-1405
The synthetic pathway to the furan-containing macrolide pheromone (1) of Galerucella beetles was shortened from 13 steps in the original synthesis to 10 steps, and the overall yield was increased greater than six-fold. A concise Reformatsky-based seq
Autor:
Richard J. Petroski
Publikováno v:
Organic Communications, Vol 1, Iss 3, Pp 48-53 (2008)
Bridged ortho esters of 3-halopropyl carboxylic acids were prepared by esterification of 3-methyl-3-hydroxymethyloxetane with 3-bromopropionyl chloride and pyridine in dry THF, followed by rearrangement with boron trifluoroetherate, to afford 1-(2-br
Autor:
Richard J. Petroski
Publikováno v:
Synthetic Communications. 37:3841-3854
New phosphonate reagents were developed for the two‐carbon homologation of aldehydes to unbranched or methyl‐branched unsaturated aldehydes. The phosphonate reagents, diethyl methylformylphosphonate dimethylhydrazone and diethyl ethylformyl‐2
Autor:
Richard J. Petroski
Publikováno v:
Letters in Organic Chemistry. 4:452-455
Publikováno v:
Journal of Chemical Ecology. 32:2543-2558
Volatiles from the eggplant flea beetle, Epitrix fuscula Crotch (Coleoptera: Chrysomelidae), feeding on host foliage, were investigated. Six male-specific compounds were detected and were identified through the use of mass spectrometry, nuclear magne
Autor:
Leslie Hammack, Richard J. Petroski
Publikováno v:
Journal of Chemical Ecology. 30:1809-1825
We used field assays to study attraction of feral northern and western corn rootworm beetles (Diabrotica barberi and D. virgifera virgifera) to a series of mostly nitrogenous and benzenoid synthetic compounds allied with host plant and floral aromas.
Autor:
Richard J. Petroski
Publikováno v:
Synthetic Communications. 33:3233-3241
A concise synthesis of (2E,4Z)-2,4-heptadien-1-ol and (2E,4Z)-2,4-heptadienal is presented. Commercially available (Z)-2-penten-1-ol was converted to ethyl-(2E,4Z)-2,4-heptadienoate by reaction with activated MnO2 and (carboethoxymethylene)triphenylp
Autor:
Richard J. Petroski
Publikováno v:
Synthetic Communications. 33:3251-3259
Efficient and robust methods for the monoprotection of 1,3-propanediol, 1,4-butanediol, and 1,5-pentanediol as THP ethers have been developed. The preparation of 4-(tetrahydro-pyran-2-yloxy)-butan-1-ol from 1,4-butanediol and 5-(tetrahydro-pyran-2-yl