A process for producing geranylgeraniol is provided, which comprising the steps of subjecting a mixture of at least one ester derivative wherein one or more carbon-carbon double bonds in the molecule are in cis form represented by the general formula (1): ##STR1## wherein R represents an aromatic group which can be substituted with at least one substituent, or a higher aliphatic group having from 7 to 25 carbon atoms, and wavy lines, respectively, represent a state where each carbon-carbon double bond can be present in cis or trans form, and an ester derivative of the general formula (2): ##STR2## wherein R is as defined above, to crystallization to obtain the ester derivative of the formula (2) selectively, and hydrolyzing the thus obtained ester derivative.
MERCURY(II) TRIFLATE—AMINE COMPLEX-INDUCED CYCLIZATION OF GERANYLGERANYL<i>p</i>-NITROBENZOATE: SYNTHESIS OF SPONDIAN AND LABDANE DITERPENOIDS
作者:Mugio Nishizawa、Hideyuki Takenaka、Yuji Hayashi
DOI:10.1246/cl.1983.1459
日期:1983.9.5
Biomimetic cyclization of geranylgeranyl p-nitrobenzoate by the mercury(II) triflate—N,N-dimethylaniline complex and subsequent reductive demercuration provide a tricyclic and two bicyclic diterpenoids in moderate yields. This is the first example of the cyclization of geranylgeraniol to the tricyclic diterpene.
Chemical simulation of polycyclic diterpenoid biosynthesis using mercury(II) triflate/N,N-dimethylaniline complex: mechanistic aspects of a biomimetic olefin cyclization
作者:Mugio Nishizawa、Hideyuki Takenaka、Yuji Hayashi
DOI:10.1021/jo00356a008
日期:1986.3
BEGLEY, MICHAEL J.;FISH, PAUL V.;PATTENDEN, GERALD;HODGSON, SIMON T., J. CHEM. SOC. PERKIN TRANS. PT 1,(1990) N, C. 2263-2271
作者:BEGLEY, MICHAEL J.、FISH, PAUL V.、PATTENDEN, GERALD、HODGSON, SIMON T.