Results 91 to 100 of about 503 (122)
Some of the next articles are maybe not open access.

The photochemistry of 1-phenylpropenes

Journal of the Chemical Society, Perkin Transactions 2, 1973
An examination of the photochemical and photophysical processes resulting from excitation in the α and A bands of cis- and trans-1-phenylpropene in the gas phase has been carried out. Measurement of quantum yields of fluorescence, fluorescence lifetimes, and quantum yields of isomerization on excitation in the α bands has revealed that the value for ...
Mark G. Rockley, Kingsley Salisbury
openaire   +1 more source

Prenylated phenylpropenes from Coleonema pulchellum with antimicrobial activity

Phytochemistry, 1997
The lipophilic root extract of Coleonema pulchellum was analysed and tested for antifungal and antibacterial activity. Eight previously undescribed prenyloxy and geranyloxy phenylpropenes, were isolated as major compounds together with the known evofolin-C as well as the lignans (+/-)-sesamin and (+/-)-prenylpiperitol, the diterpene (-)-pimara-9(11),15-
G, Brader   +3 more
openaire   +2 more sources

Phenylpropene diglycosides from the bark ofMachilus wangchiana

Journal of Asian Natural Products Research, 2012
Five new phenylpropene diglycosides (1-5), together with three known analogs, have been isolated from an ethanol extract of the bark of Machilus wangchiana. Their structures were determined by spectroscopic and chemical methods. In the preliminary assay, compounds 2 and 5-8 reduced dl-galactosamine (GalN)-induced hepatocyte (WB-F344 cells) damage with ...
Wei, Cheng   +6 more
openaire   +2 more sources

ChemInform Abstract: Special Features of 2‐Phenylpropene Arenesulfonation.

ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
E. E. Bilaya   +2 more
openaire   +1 more source

Synthesis of N-(1-carboxy-3-phenylpropen-2yl)alanylproline

Chemistry of Heterocyclic Compounds, 1996
A method has been developed for the synthesis of N-(1-carboxy-3-phenylpropen-2-yl)atanylproline by reductive alkylation of alanylproline by the sodium salt of 2-oxo-4-phenylbutenoic acid, using sodium cyanoborohydride and sodium borchydride as reducing agents. The products were separated chromatographically. Under the conditions of the reaction, sodium
V. A. Slavinskaya   +6 more
openaire   +1 more source

Enantioselective carbonylation reactions of para‐substituted 2‐phenylpropenes

Chirality, 1991
AbstractThe enantioselective hydroformylation catalyzed by [(R,R)‐Diop]Pt(SnCl3)Cl7 and the enantioselective hydroisopropoxycarbonylation catalyzed by [(R,R)‐Diop]PdCl28 or by [(R,R)‐Diop‐dbp]PdCl29 of some para‐substituted 2‐phenylpropenes (para substituents = NO2, H, CH3O, Cl, CF3) was investigated in order to recognize possible electronic influences
Giambattista Consiglio, Lucia Roncetti
openaire   +4 more sources

Preparation and chemistry of some 1-Iodo-1-phenylpropenes

Australian Journal of Chemistry, 1971
The oxidation of eight aryl alkyl hydrazones with iodine in the presence of triethylamine gave mixtures of 1-iodo-1-arylpropenes and ketones in yields of 36-73% and 19-43% respectively. Further evidence is presented in favour of an iodocarbonium ion intermediate for this reaction.
JR Campbell, A Pross, S Sternhell
openaire   +1 more source

Phenylpropenes: Occurrence, Distribution, and Biosynthesis in Fruit

Journal of Agricultural and Food Chemistry, 2016
Phenylpropenes such as eugenol, chavicol, estragole, and anethole contribute to the flavor and aroma of a number of important herbs and spices. They have been shown to function as floral attractants for pollinators and to have antifungal and antimicrobial activities.
openaire   +2 more sources

THE METHOXYMERCURATION OF 2-METHYL-1-PHENYLPROPENE-1

Canadian Journal of Chemistry, 1952
The addition of the elements of methoxymercuric acetate to 2-methyl-1-phenylpropene-1 occurs to give 2-methyl-2-methoxy-1-phenylpropylmercuric acetate. This structure could not be demonstrated by replacement of chloromercuri by halogeno because 2-methyl-1,2-dimethoxy-1-phenylpropane and 2-methyl-2-phenylpropanal or 3-phenylbutanone-2 were obtained ...
L. Berman   +3 more
openaire   +1 more source

Hydrogen-atom attack on 1-phenylpropene at high temperatures

Symposium (International) on Combustion, 1994
The reactions of hydrogen atom with 1-phenylpropene (IPP) have been studied in single-pulse shocktubeexperiments. Contribution from a large number of the possible reactive channels has been observed. The prime channels are the displacement of the methyl group resulting from addition to the olefinic structure and abstraction of a hydrogen from the ...
Wing Tsang, James A. Walker
openaire   +1 more source

Home - About - Disclaimer - Privacy