Superacid chemistry

GA Olah, GKS Prakash, J Sommer, A Molnar - 2009 - books.google.com
The chemistry of superacids has developed in the last two decades into a field of growing
interest and importance. Now available in a new expanded second edition, this definitive …

Enzymatic synthesis of an indole diterpene by an oxidosqualene cyclase: mechanistic, biosynthetic, and phylogenetic implications

Q Xiong, X Zhu, WK Wilson, A Ganesan… - Journal of the …, 2003 - ACS Publications
Petromindole (1) is an unusual indole diterpene that bears a triterpene-like carbon skeleton,
suggesting biogenesis from 3-(ω-oxido-geranylgeranyl) indole (4). We found that lupeol …

General preparation and controlled cyclization of acyclic terpenoids

J Kuk, BS Kim, H Jung, S Choi, JY Park… - The Journal of Organic …, 2008 - ACS Publications
A general preparation method of the all-(E)-polyprenols 12 has been developed from readily
available geranyl sulfone by the chain-extension process utilizing the C5 unit 5 and the …

Studies towards the synthesis of cheilanthane sesterterpenoids: superacidic cyclisation of methyl 13Z, 17Z-and 13Z, 17E-bicyclogeranylfarnesoates

N Ungur, V Kulciţki, M Gavagnin, F Castelluccio… - Tetrahedron, 2002 - Elsevier
Superacidic low temperature cyclisation of bicyclogeranylfarnesoic acid methyl esters (1 and
2) exhibiting the 13Z-configuration afforded cheilanthane and rearranged cheilanthane …

Superacid‐Catalyzed Cyclization of Methyl (6Z)‐Geranylfarnesoates

M Grinco, V Kulciţki, N Ungur, W Jankowski… - Helvetica chimica …, 2007 - Wiley Online Library
Abstract Methyl (2Z, 6Z, 10E, 14E)‐(3) and methyl (2E, 6Z, 10E, 14E)‐geranylfarnesoate (4)
were prepared, and then individually cyclized in the presence of the superacid FSO3H. In …

Synthesis of Polyfunctional Drimanes from Drim-7, 9 (11)-diene and Drim-8-en-7-one

A Ciocarlan, C Edu, A Biriiac, L Lungu… - Synthetic …, 2013 - Taylor & Francis
A series of 15 new polyfunctional drimanic compounds have been obtained by synthesis via
dye-sensitized photooxygenation, bromination with N-bromosuccinimide, and …

Superacid cyclization of certain aliphatic sesquiterpene derivatives in ionic liquids

M Grin'ko, V Kul'chitskii, N Ungur, PF Vlad - Chemistry of natural …, 2006 - Springer
Superacid cyclization of certain aliphatic sesquiterpene derivatives in ionic liquids Page 1
Institute of Chemistry, Academy of Sciences of Moldova, ul. Akademicheskaya, 3, Kishinev …

Superacidic cyclization of all-trans-ω-acetoxyfarnesyl benzyl ether

V Kulciki, N Ungur, PF Vlad, M Gavagnin… - …, 2000 - thieme-connect.com
Superacidic Cyclization of All-trans-w-Acetoxyfarnesyl Benzyl Ether Page 1 PAPER 407
Synthesis 1999, No. 3, 407–410 ISSN 0039-7881 © Thieme Stuttgart · New York Superacidic …

Superacid cyclization of (2E,6E,10E,14E)-8-phenylsulfonylgeranylfarnesol tetrahydropyranyl ether

V Kulcitki, M Grin'ko, A Barba, N Ungur… - Chemistry of Natural …, 2007 - Springer
Abstract A mixture of (13 E, 17 E)-12-phenylsulfonylbicyclogeranylfarnesol tetrahydropyranyl
ether (8) and (13 E, 17 E)-12-phenylsulfonylbicyclogeranylfarnesol (9) was formed by …

Synthesis of ent-crotonadiol and compounds related to it from (+)-larixol

PF Vlad, A Chokyrlan, M D'Ambrosio, MN Koltsa… - Chemistry of Natural …, 2011 - Springer
A new synthesis of 13E-ent-crotonadiol and its 13Z-isomer from 6a-acetoxy-14, 15-bis-
norlabd-8 (17)-en13-one is described. A mixture of methyl esters of 13E-and 13Z-6a …