Abstract:
The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or IPD for short, by aminating hydrogenation of 3-cyano-3,5,5-trimethylcyclohexanone, referred to hereinafter as isophoronenitrile or IPN for short, in the presence of a shaped Raney hydrogenation catalyst.
Abstract:
Process for the preparation of octa-2,7-dienyl-1-amine by telomerization of butadiene with ammonia in a two-phase system in the presence of hydrophilic palladium complexes, characterized in that octa-2,7-dienyl-1-amine and octa-1,7-dienyl-3-amine are isolated separately from one another from the reaction mixture present after telomerization, and the octa-1,7-dienyl-3-amine isolated in this way is subjected to an isomerization reaction to form octa-2,7-dienyl-1-amine, and also novel triphenylphosphine mono- and dimethoxytri(sodium sulphonates) and the use of triphenylphosphine trimethoxytri(sodium sulphonates), triphenylphosphine trimethyltri(sodium sulphonates) and triphenylphosphine trifluorodi- and tri(sodium sulphonates) as ligands for the preparation of palladium complexes.
Abstract:
Novel derivatives of 1-aminoindan and their salts are described. Optically active 1-aminoindan derivatives are prepared by reacting a N-benzyl analog of the desired compound with an enantiomer of mandelic acid. Parkinson's disease, dementia, epilepsy, convulsions, or seizures are treated by administering a compound of the formula: ##STR1##
Abstract:
A process for the preparation of N,N-dialkylarylamines (I) by reacting arylamines (II) with alcohols (IIIa) or dialkyl ethers (IIIb) in the presence of an oxygen acid of phosphorus or in the presence of an ammonium salt thereof as catalyst, comprises reacting the oxygen acid of phosphorus with an arylamine (IV) before the reaction is commenced. The invention also relates to the regeneration of the catalyst by occasionally interrupting the reaction and treating the catalyst phase at from 100.degree. to 300.degree. C. with steam or water.
Abstract:
A method for synthesizing an aromatic amine, an aromatic alcohol or an aromatic thiol by an aromatic nucleophilic substitution reaction is disclosed, which comprises reacting a compound represented by formula (I): ##STR1## wherein Q.sup.1 represents an aromatic ring; EWG represents a group having a positive Hammett's .sigma..sub.p value; m represents an integer of 1 to 5; n represents an integer of 1 to 3; and X represents a group represented by formula (III): ##STR2## wherein R.sup.4 represents hydrogen atom, an aryl group or an alkyl group; Q.sup.2 represents an atomic group for forming an aromatic ring; and Z.sup.1 and Z.sup.2 each represents an oxygen atom or a sulfur atom with a nucleophilic reagent represented by formula (II):M--Y (II)wherein M represents a hydrogen atom, a metal atom or an ammonium; Y represents a --NHR.sup.1 group, an --OR.sup.1 group, or a --SR.sup.1 group; R.sup.1 represents a hydrogen atom, an alkyl group, an aryl group, a residue of a heterocyclic ring, a --NR.sup.2 R.sup.3 group or an --OR.sup.2 group; and R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group, an aryl group or a residue of a heterocyclic ring.
Abstract:
The invention relates to N-[2-(4-fluorophenyl)-1-methyl]-ethyl-N-methyl-N-propynyl amine of the Formula I ##STR1## and isomers and salts thereof. The compound of the Formula I is useful as an insecticide.
Abstract:
The present disclosure relates to substituted hydroxystilbene compounds and derivatives, specifically 2-substituted hydroxystilbene compounds and derivatives, the synthesis of such compounds and their use in therapy.
Abstract:
The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound.
Abstract:
Disclosed is a process for producing a tertiary amine from a primary or secondary amine and alcohol as corresponding starting materials, which includes step (i) of dehydrogenating an alcohol to obtain an aldehyde, step (ii) of reacting the aldehyde with a primary or secondary amine to obtain a primary or secondary amine adduct, and step (iii) of hydrogenating the primary or secondary amine adduct to obtain a tertiary amine, wherein step (ii) is carried out independently of the other steps.
Abstract:
Octa-2,7-dienyl-1-amine and octa-1,7-dienyl-3-amine, from which octyl-1-amine can be prepared, are prepared selectively by telomerizing butadiene and ammonia in a two-phase system, the catalyst being used in an aqueous phase and an organic medium which is immiscible or only slightly miscible with water being employed as the second phase.