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Vitamin A analogues—IV : Attempted synthesis of 2,4,4-trimethyl-tetrahydrothiopyrone-3

✍ Scribed by J.L. Baas; A. Davies-Fidder; H.O. Huisman


Publisher
Elsevier Science
Year
1966
Tongue
French
Weight
439 KB
Volume
22
Category
Article
ISSN
0040-4020

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Attempted synthesis of ethyl 3,4-dihydro
✍ Stanislas Mayer; Axelle Arrault; GÉRald Guillaumet; Jean-Yves Mérour 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 65 KB

## Abstract Ethyl 3,4‐dihydro‐2__H__‐1,4‐benzoxazine‐3‐carboxylate derivatives **2** were obtained and isolated in low yields from the condensation of 2‐aminophenol and ethyl 2,3‐dibromopropanoate. They can be obtained by hydrogenation of ethyl 2__H__‐1,4‐benzoxazine‐3‐carboxylate in satisfactory y