[EN] DIENE GEMINI POLYMERIZABLE SURFACTANTS WITH MIXED CIS AND TRANS ISOMERS THAT FORM BICONTINUOUS CUBIC PHASES<br/>[FR] TENSIOACTIFS POLYMÉRISABLES PAR DIÈNES GÉMINI AVEC ISOMÈRES CIS ET TRANS MÉLANGÉS QUI FORMENT DES PHASES CUBIQUES BICONTINUES
申请人:TDA RESEARCH INC
公开号:WO2020014263A1
公开(公告)日:2020-01-16
A polymerizable Gemini surfactant based on tail groups with mixed isomer dienes. The Gemini surfactants may be produced having imidazolium head groups and diene tail groups with a near-equal abundance of the Έ" and "Z" isomers. These compounds are lyotropic liquid crystals that can form bicontinuous cubic phases by self-assembly.
Oxazoline-mediated synthesis of the Gossypium sesquiterpene lacinilene C-7 methyl ether and a structurally Related HIV-1 Reverse Transcriptase Inhibitor
作者:Thomas G. Gant、A.I. Meyers
DOI:10.1016/s0040-4039(00)79206-9
日期:1993.6
An efficient synthesis of the phytoalexin, lacinilene C-7 methylether, via its probable biosynthetic precursor, 2-hydroxy-7-methoxycadalene is described. A related synthesis of a HIV-1 reverse-transcriptase inhibitor is briefly discussed.
Acyclic stereocontrol through the metalla-claisen rearrangement. Part I
作者:Ilane Marek、Jean-Michel Lefrançois、Jean F. Normant
DOI:10.1016/s0040-4039(00)79440-8
日期:1991.10
(Z)-γ lithio vinylic ethers can be added in a stereoselective way to allyl zinc bromide, leading to 1,1-dimetallic species with two asymmetric carbon atoms.
The addition of zincated allytrimethylsilane to γ-alkoxyvinyllithiums in the presence of an excess of ZnBr2 (and MgBr2) is highly diastereoselective when performed under precise temperature conditions. A formal synthesis of serricornin is proposed.
Deprotonation of 2-phenyl-1-tosylaziridine 1 with butyl lithium gives an anion that cyclizes to 4 by an intramolecular nucleophilic aromatic addition. Treatment of derivatives 5, 6 with a Grignard reagent produces aziridines 10, 11.