Pyrrolizidine alkaloid analogues. Synthesis of macrocyclic diesters of (±)-synthanecine A from (±)-3-chloromethyl-2-hydroxymethyl-1-methyl-2,5-dihydropyrrolium chloride
作者:Robert H. Barbour、David J. Robins
DOI:10.1039/p19880001169
日期:——
anion in the presence of base (DBU) gives the corresponding macrocyclic diesters of (±)-synthanecine A. The pyrrolizidinealkaloid analogues [(6), (7), and (16)–(20)] are prepared in better yields than using Corey–Nicolaou lactonisation conditions. A range of new 10-membered [(8)–(10) and (12)–(14)] and 11-membered [(15) and (21)] macrocyclic diesters of (±)-synthanecine A has been prepared.
Aschan, Justus Liebigs Annalen der Chemie, 1912, vol. 387, p. 43
作者:Aschan
DOI:——
日期:——
Verheijdt, Paul L.; Cerfontain, Hans, Recueil des Travaux Chimiques des Pays-Bas, 1983, vol. 102, # 3, p. 173 - 181
作者:Verheijdt, Paul L.、Cerfontain, Hans
DOI:——
日期:——
BARBOUR, ROBERT H.;ROBINS, DAVID J., J. CHEM. SOC. SOC. PERKIN TRANS.,(1988) N 5, 1169-1172
作者:BARBOUR, ROBERT H.、ROBINS, DAVID J.
DOI:——
日期:——
Multilayer Film Based on a Fluoropolymer and an Acrylic Polymer
申请人:Bonnet Anthony
公开号:US20080145652A1
公开(公告)日:2008-06-19
The invention relates to the use of a multilayer film for protecting a substrate which gives off volatile compounds which comprises: a surface layer comprising, by weight, from 70 to 100%, preferably from 90 to 100%, of a fluoropolymer and from 0 to 30%, preferably from 0 to 10% of an acrylic polymer; an adhesive layer comprising from 50 to 100% of an acrylic polymer, from 0 to 50% of a fluoropolymer, from 1 to 10% of a UV stabilizer and from 0 to 50% of an impact modifier, characterized in that the thickness of the surface layer is between 2 and 15 μm, preferably between 2 and 10 μm, more preferably still between 3 and 8 μm, and the thickness of the adhesive layer is between 30 and 75 μm, preferably between 30 and 60 μm, more preferably still between 30 and 50 μm. The invention also relates to a substrate protected by the multilayer film.