A convenient preparation of 1,2,3,4,5,6,7,8-octahydro-naphthalene skeleton. Synthesis of (±)-isocaridiene
Synthesis of isocaridiene, an isomeric compound of natural sesquiterpene caridiene, is described starting from myrcene. Dehydration of tertiary alcohol leading exclusively to isocaridiene was in agreement with the semiempirical and ab initio quantum mechanical calculations.
Imamura, Paulo M.,Costa, Marta,Custodio, Rogerio
p. 1393 - 1399
(2007/10/03)
CYCLIZATION OF DERIVATIVES OF 1-(4-METHYL-3-PENTENYL)-1-CYCLOHEXENE AT ELEVATED TEMPERATURES
With catalytic amounts of an acid and at elevated temperatures the derivatives of 1-(4-methyl-3-pentenyl)-1-cyclohexene undergo electrophilic cyclization with high yields.
Kron, A. A.,Burdin, E. A.,Fedotova, Z. M.,Novikov, N. A.
p. 1035 - 1038
(2007/10/02)
CYCLIAZTION OF ACYCLIC ISOPRENOIDS. II. MOLECULAR REARRANGEMENTS OF ISOLONE IN SUPERACIDS
Stable carbocations were generated for the first time from 5-acetyl-2-(4-methyl-3-pentenyl)-1-cyclohexene ("isolone").Their structure and molecular rearrangements were studied.It was shown that variation in the strength of the acid and the thawing temperature of the acid solution has a significant effect on the direction of the rearrangements.The rearrangements obey the previously discovered relationships for the cyclization of acyclic 1,5-dienes.
Gavrilyuk, O. A.,Korchagina, D. V.,Tatarova, L. E.,Burdin, E. A.,Bagryanskaya, I. Yu.,et al.
p. 1540 - 1550
(2007/10/02)
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