The modification of the poly (ethylene-co-vinyl acetate) (EVA) by direct esterification of its ethylene-vinyl alcohol copolymer with mercaptoacetic acid was carried out. The amount of the mercaptan group was controlled to avoid gel formation during the graft polymerization with styrene by chain tran
✦ LIBER ✦
Isoprenoid chain elongations by Claisen rearrangements using acetals as precursors of vinyl ethers
✍ Scribed by Peter Baeckström; Lanna Li
- Book ID
- 104204095
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 763 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
Claisen rearrangements of ally1 vinyl ethers, formed in situ by the acid catalyzed reaction of dimethyl acetals of acetaldehyde, acetone and isopropenyl methyl ketone with different types of allylic alcohols, have been compared. The primary, secondary and tertiary allylic alcohols used in the investigation were selected to serve as models for isoprenoid synthesis. The basis for two feasible methods that can be iterated to create isoprenoid chains has been investigated.
📜 SIMILAR VOLUMES
Graft copolymers from modified ethylene–
✍
Ronilson V. Barbosa; Bluma G. Soares; Ailton S. Gomes
📂
Article
📅
1993
🏛
John Wiley and Sons
🌐
English
⚖ 389 KB
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