589 Similar transalkylation reactions were observed in the reactions of dimethylformamide acetals with aryl isothiocyanates giving thioimidates (281; equation 150).590,591 (148) (149) (150) Benzothiazole can be metallated by treatment with butyllithium; the compound thus formed reacts with various...
The reaction according to process (b) is carried out under the conditions generally well known for alkylations. The reactive group in compounds of general formula (IV) is preferably a halogen atom or a sulphonic acid ester group. As a rule, the alkylation is carried out in a polar solvent...
15. The composition of claim 1, wherein the polyether monoamine is made by ethoxylating methanol ethylene oxide to form an ethoxylate, propoxylating the ethoxylate with propylene carbonate to form a polyol, and aminating the polyol with ammonia in the presence of an alkylation catalyst. 16. ...
Although the relation of effectiveness to chemical structure is insufficiently understood, many of the most effective phenols have Y groups of subgenus (1), and accordingly this is preferred. Some of these phenols can be prepared by the alkylation of phenols or alkyl phenols with polyunsaturated hyd...
The process of the invention gives cyclic amine based polymers which are substantially free of aliphatic primary, secondary and quaternary amino or ammonium groups. The content of quaternary ammonium groups in the said polymers obtained by alkylation with component (c) does not exceed 20 mol % and...
Aralkyl acids that are suitable for use to synthesize the additive are those acids that can be prepared by alkylation of an aromatic hydrocarbon such as benzene, toluene, xylenes, or the like with an unsaturated fatty acid such as the mono-unsaturated acids lauroleic, myristoleic, palmitoleic,...
Described is a novel process for regenerating an ASO contaminated alkylation catalyst containing a sulfone component and a hydrogen halide component. A sulfone-containing mixture containing ASO and wh
Thus, for example alkylation, arylation or heteroarylation of a compound of formula (1) may be achieved by reaction of the compound with a reagent R4L, AlkL or Ar1 L where L is a leaving atom or group as described above. The reaction may be carried out in the presence of a base, ...
Alkaline bark extracts or peat moss are also useful aromatic starting materials for the aminoalkylation. Prior to the Mannich reaction the lignins can be modified to suit specific applications. The molecular weight may be increased by reacting kraft lignin or any other suitable lignin, such as modi...
Process (p) may be performed using conventional interconversion procedures such as epimerisation, oxidation, reduction, alkylation, nucleophilic or electrophilic aromatic substitution, ester hydrolysis or amide bond formation. Compounds of formula (II) wherein R3 represents —(CH2)q—NR11R12 may be ...