R1 is alkyl or substituted alkyl, by heating in a solvent a compound of the formula (II) wherein -COR2 is an acyl derivative.
The 'alkyl' substituent can be alkyl, arylalkyl or aryl.
The anionic surfactants comprise linear alkyl benzene sulfonate, alkyl sulfates and alkyl ethoxylated sulfates.
In said formula R1 represents alkyl; R2 represents hydrogen or alkyl; and R3 represents hydrogen, alkyl or chloro.
R = alkyl, aryl, arylalkyl, R', R" = H, alkyl, aryl, arylalkyl.
The long chain N-alkyl group is a C8-C16 alkyl group.
R1 may be a substituted or unsubstituted alkyl, arylalkyl or aryloxy group, and R2 may be an alkyl group, preferably a C¿1?-C3 lower alkyl group.
Here, an alkyl group having 1 to 4 carbon atoms is preferable in the alkyl group.
Saturated hydrocarbon chains are oxidised using a titanium containing silicalite catalyst having an infrared absorption band around 950 cm-1 preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.
The group P consists of alkyl groups, alkoxy groups, alkyl-substituted aryl groups, alkoxy-substituted aryl groups and alkyl-substituted heteroaryl groups.)
The alkyl moieties of the ingredients (b) and (c) are linear saturated alky chains.
Each Ra is independently -H, lower alkyl, substituted lower alkyl, aryl or substituted aryl.
The surfactant solution contains a combination of alkyl polyglycoside and alkylether sulphate.
R5 and R7 are each independently alkyl or aryl; and R6 is H or afkyl.
The alkyl radical reacts with the aryl compound to produce the aryl-alkyl hydrocarbon.
R''' is selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, arylalkyl.
Substituent R of formula(1)or(2)represents linear alkyl or branch-alkyl .The ligand can be used in all kinds of metallic catalysis asymmetric reaction.
The peptide deformylase inhibitor containing 2,5-dihydropyrrole has the structure as formula (A).
Wherein R1 is alkyl; R2 is H or alkyl; and R3 is alkyl, aryl, or heterocyclic group.
Benzodiazepine derivatives of formula (I) wherein R2 is alkyl or cycloalkyl-alkyl when R4 is hydrogen, or R2 is a variety of specified groups when R4 is alkyl, halogen or dialkylamino, are useful as cholecystokinin antagonists.
Thiadiazine compounds of the formula (I) (FORMULA) wherein R1 is alkyl, R2 is alkyl, cycloalkyl, alkenyl or aryl, R3 is alkyl and R4 is alkyl, are useful as insecticides.
The present invention relates to a liquid cleaning and disinfecting composition and, in one embodiment, a liquid cleaning and disinfecting liquid hand dishwashing composition, comprising an alkyl or substituted alkyl branched alkyl chain amine oxide.
R11 is H or alkyl; R12 is alkyl with the proviso that R?11 and R12¿ are different, and K is hydrogen, alkoxy, hydroxyl, aryloxy or alkyl.
In formula (III), R9 is a hydrogen atom or alkyl and R10 is alkyl.
3-Methyl-20-epi-vitamin D derivatives represented by the general formula (1), wherein R is straight-chain or branched alkyl which may be hydroxylated.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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