A new route to selectively protected cis 4a-methyl-hexahydronaphthalene-1(2H), 7(8H)-diones
✍ Scribed by Joannes B.P.A. Wijnberg; Ronald P.W. Kesselmans; Aede de Groot
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 114 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A two steps transformation of tran6-fused bicyclic 1,7-diones into their C~S isomers is described.
Recently we reported the acid-catalyzed isomerization of bicyclic 8-hydroxy enones (1)
📜 SIMILAR VOLUMES
## Abstract The reaction of benzil 1‐ureidoethylidene hydrazones 8 with a mixture of triphenylphosphine, carbon tetrachloride, and triethylamine provides a general route to 7__H__‐imidazo[1,2‐__b__][1,2,4]triazoles 18 __via__ the thermal reaction of the expected keto azine carbodiimide intermediate
## Abstract The 6‐(3‐hydroxypropylamino)‐3‐methylpyrimidine‐2,4‐dione (1) did not afford the expected 6‐(3‐chloro‐propylamino)‐ derivative on reaction with thionyl chloride, but, instead, the pyrimidine rings were joined __via__ a sulfur bridge to give 9,9′‐thiobis(1,2,3,4,7,8‐hexahydro‐7‐melnyl‐6_