Results 111 to 120 of about 619,568 (137)

Rhodium-diphosphite catalysed hydroformylation of allylbenzene and propenylbenzene derivatives

Inorganica Chimica Acta, 2006
The asymmetric hydroformylation of allylbenzenes and propenylbenzenes is an important tool for obtaining high value intermediates for the pharmaceutical and perfume industry. We have studied these reactions with rhodium-chiral diphosphite systems. The diphosphite ligands 6 and 7 with carbohydrate backbone have high regioselectivities in trans-anethole ...
Sergio Castillón, M Rosa Axet, Carmen Claver   +2 more
exaly   +2 more sources

Ultranox626 as a selective ligand in rhodium-catalyzed hydroformylation–acetalization of allylbenzene derivatives

Reaction Kinetics, Mechanisms and Catalysis, 2011
Ultranox626 as a diphosphite ligand showed high selectivity and good yields when used with Rh(CO)2(acac) as a catalyst precursor in the hydroformylation of allylbenzene derivatives producing aldehydes, and also in the one-pot hydroformylation–acetalization forming acetals. These reactions proceed smoothly and effectively to produce the linear aldehydes
Rami K Suleiman, Bassam El Ali, Mouheddin Alhaffar   +2 more
exaly   +2 more sources

Radiation-induced and electroinitiated polymerization of allylbenzene

Polymer, 1990
Radiation-induced and electroinitiated polymerization of allylbenzene has been investigated. Radiation-induced polymerization at room temperature was found to give mainly dimers and trimers with a maximum yield of 5%.
Ahmet Muhtar Önal, Ali Usanmaz
exaly   +2 more sources

ChemInform Abstract: WAGNER‐MEERWEIN REARRANGEMENT OF ALLYLBENZENE DERIVATIVES PART 1, BROMINATION OF SAFROLE

Chemischer Informationsdienst, 1975
AbstractBei der Bromierung von Safrol (I) mit Brom in Chloroform entstehen die Bromierungsprodukte (II)‐(V), von denen die Verbindungen (III) und (V) durch Wagner‐ Meerwein‐Umlagerung gebildet werden.
T. IRINO, K. OTSUKI
openaire   +1 more source

Covalent binding to DNA in vitro of 2',3'-oxides derived from allylbenzene analogs.

Drug Metabolism and Disposition, 1996
Epoxidation at the allylic side chain is a major metabolic pathway for allylbenzene and its naturally occurring analogs safrole, estragole, and eugenol. We demonstrate herein that the epoxide metabolites of allylbenzene, estragole, and safrole can form covalent adducts with DNA in vitro, binding primarily to guanine, but also to the other three DNA ...
G, Luo, T M, Guenthner
openaire   +2 more sources

ChemInform Abstract: DI‐Π‐METHANE REARRANGEMENTS OF SIMPLE ALLYLBENZENE DERIVATIVES WITH Π‐DONOR SUBSTITUENTS

Chemischer Informationsdienst, 1981
Abstract(IX), von denen das Methoxyindan (IX) auch aus der Verbindung (X) zugänglich ist.
S. JOLIDON, H.‐J. HANSEN
openaire   +1 more source

ChemInform Abstract: REACTIONS OF ELECTRONICALLY EXCITED ALLYLBENZENE DERIVATIVES. 4. PHOTOCHEMICAL ADDITION OF ANILINES TO 1,3‐DIENES

Chemischer Informationsdienst, 1980
AbstractPiperylen, Butadien und Cyclohexadien an schema skizziert.
S. JOLIDON, H.‐J. HANSEN
openaire   +1 more source

Functional poly(1,4-ketone)s with pendant hydroxy moieties, 1. Pd(II)-catalyzed alternating copolymerization of carbon monoxide and allylbenzene derivatives

Macromolecular Chemistry and Physics, 2000
Functional poly(1,4-ketone)s were prepared by alternating copolymerization of carbon monoxide with substituted allylbenzenes, namely 2-allylphenol 1. 2-allyl-4-methylphenol 2. 2-allyl-6-methylphenol 3. 2-allylmethoxybenzene 4. 2-allylethoxybenzene 7.
Roland Wursche, Bernhard Rieger
openaire   +1 more source

ChemInform Abstract: REACTIONS OF ELECTRONICALLY EXCITED ALLYLBENZENE DERIVATIVES. PART 5. PHOTOCHEMICAL REACTION OF OPTICALLY ACTIVE 2‐(1′‐METHYLALLYL)ANILINES WITH METHANOL

Chemischer Informationsdienst, 1981
AbstractDie Be‐ Strahlung der (S)‐Amine (I) in Methanol liefert die Produkte (II), (III) und (IV).
B. SCHOLL, H.‐J. HANSEN
openaire   +1 more source

Metabolism of naturally occurring propenylbenzene derivatives III. Allybenzene, propenyl benzene, and related metabolic products

Biochimica et Biophysica Acta (BBA) - General Subjects, 1977
The acidic and neutral urinary metabolites of allylbenzene, propenylbenzene, 1'-hydroxyallylbenzene, and cynnamyl alcohol were identified and related through a common metabolic scheme. The rat metabolizes allylbenzene to 1'-hydroxyallylbenzene which can rearrange to yield cinnamyl alcohol whick is further metabolized.
J D, Peele, E O, Oswald
openaire   +2 more sources