In the study, the observed antioxidant activity revealed that all the analyzed compounds, have promising antioxidant activities, which may be the result of the presence of benzylpiperazine and dipropylamine, and a methylpiperidine moiety as well as the allyl group
. Therefore, it was concluded that ample scope exists for further studies.
Role of allyl group
in the hydroxyl and peroxyl radical scavenging activity of S-allylcysteine.
The thiosubstituted 3b compound gave the reaction of addition of bromine to the double bond in the allyl group
in the presence of carbon tetrachloride.
Previous works on homopolymerization of long chain vinyl and allyl esters derived from fatty acids have shown that polymerization occurs between the aliphatic double bonds of one molecule and the vinyl or allyl group
(2002) the active substances in garlic responsible for breaking bud dormancy are volatile compounds containing sulfur and an allyl group
(C[H.sub.2]CHC[H.sub.2]), specially the diallyl dissulfide, which is the most abundant sulfide in garlic.
Since this compound was not very stable, an allyl group
was attached to the secondary amine to give the stable prod uct G (R = allyl) (Scheme 2).
Diallyltrisulfide (DATS) and allylmethylsulfide (AMTS) inhibited forestomach cancer, DATS, which contains two allyl groups
, being more potent than AMTS, the analogue derivative with only one allyl group
In vivo, the allyl group
can lead to toxic metabolic products , but it is not always a toxicophore, since this will depend on other structural factors associated with the whole molecule.
The internal crosslinking agent is a silane compound with one vinyl group or allyl group
attached to a silicon atom and at least one Si-O bond.
The IR spectrum showed absorption bands due to hydroxyl group (3550 cm-1), aromatic system (1610- 1500 cm-1) and allyl group
The peak at [delta] 1.57 was assigned to the methyl protons of terminal dimethyl allyl group
. Thus, the different [delta] values of methyls showed the difference in methyls from different units.
The polyolefin elastomer is a polymer obtained in which an allyl group
is present at both terminals polyisobutylene, and volatile components, including residual solvent and an unreacted residual material, contained in the polyolefin elastomer are removed by distillation or reduced-pressure aspiration during or before producing the thermally conductive sheet.