Sila-Riechstoffe und Riechstoff-Isostere, 13. Mitt.Grimmsche Hydridisostere im Bereich der Duftstoffklasse des Linalools
摘要:
Substitution of the (CH3)(3)CH=CH group by (CH3)(2)C=N in linalool as well as by the (CPT3)(2)CH-CH2 group in linalool and in sila-linalool does not lead to noticeable changes of their scent qualities. On the contrary, substitution of the OH group at the tertiary C atom by NH2 or CH3 - hydride isosteric to OH according to Grimm - affords fishy or etheric instead of the original flowery smells thus indicating a transition to different basic classes of odor. Similar results were obtained with the linalool-like scents of benzyldimethylcarbinol and phenylethyldimethylcarbinol. Therefore the theory of Amoore, after which only shape and size of molecules are ruling their odor qualities, must be called in question.
Efficient syntheses of climate relevant isoprene nitrates and (1<i>R</i>,5<i>S</i>)-(−)-myrtenol nitrate
作者:Sean P Bew、Glyn D Hiatt-Gipson、Graham P Mills、Claire E Reeves
DOI:10.3762/bjoc.12.103
日期:——
chemoselective synthesis of several important, climate relevant isoprene nitrates using silver nitrate to mediate a 'halide for nitrate' substitution. Employing readily available starting materials, reagents and Horner-Wadsworth-Emmons chemistry the synthesis of easily separable, synthetically versatile 'key building blocks' (E)- and (Z)-3-methyl-4-chlorobut-2-en-1-ol as well as (E)- and (Z)-1-((2-met
METHOD OF MANUFACTURING 1-CHLORO-2-METHYL-4-ACYLOXY-2-BUTENE DERIVATIVES
申请人:SHEN Runpu
公开号:US20070270607A1
公开(公告)日:2007-11-22
1-Chloro-2-methyl-4-acyloxy-2-butene derivatives can be synthesized in good yields and high purity starting from isoprene and employing a chlorohydrin formation reaction in a system made of N-chloroisocyanuric acid derivatives and water, followed by esterification and rearrangement of the crude product mixture.