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TAIYO KORYO KK
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TAIYO KORYO KK
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Priority to JP6167980ApriorityCriticalpatent/JPS55162712A/en
Publication of JPS55162712ApublicationCriticalpatent/JPS55162712A/en
Publication of JPS5728689B2publicationCriticalpatent/JPS5728689B2/ja
NEW MATERIAL:A 4-alkyl substituted isopiperitenone shown by the formula I (R is methyl or ethyl).
EXAMPLE: 4-Methylisopiperitenone.
USE: An aromatic, aromatic modifier, their synthetic intermediate. Useful in preparation of spice and spiced products (e.g., household stuff, purifier, tooth paste, etc.). 4-Methylisopiperitenone is useful as a synthetic intermediate for an irone which is violet type spice.
PROCESS: Isopiperitenone shown by the formula II is reacted with a halogenated alkali, e.g., methyl iodide, ethyl iodide, etc. in a solvent, e.g., DMSO in the presence of an alkali, e.g., sodium alcoholate.
Process for preparing 2-<<4-<(4,4-dialkyl-2,6-piperidinedion-1-yl)-butyl>-1-piperazinyl>>-pyrimidines and of pharmaceutical compositions containing the same
4-(2,6-dihydroxy-4-(dimethylheptyl)phenyl)substituted 2-pinen-10-ol and pinane derivatives,their preparation and pharmaceutical compositions comprising them
2,5,7-trimethyloctane-3-ol and 2,4-dimethylnonane-8-ol; processes for their preparation; their use as olfactory agents; olfactory compositions containing them, as well as the preparation of such olfactory compositions; starting products for their preparation.
Substituted 8-hydroxy-1-phenyl-2,3,4,5-tetra-hydro-1h-3-benzazepines,process for the preparation thereof,and pharmaceutical compositions containing them
Bicyclo (2.2.1)-hept-5-enes (anes) (i), process for their preparation, their use as perfumes and perfume compositions containing the bicyclic compounds (i)
Derivatives of 20,21-dinoreburnamenine possibly substituted on the e ring,process for their preparation,their use as medicaments and compositions containing them and intermediates obtained