A new and convenient synthesis of azulenes from 6-N,N-Dimethyl-aminofulvene and thiophene 1,1-dioxides.
β Scribed by David Copland; Derek Leaver; William B. Menzies
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 118 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Alkyl and aryl N-substituted 1,2,5-thiadiazolidine and 1,2,6-thiadiazinane 1,1-dioxides 6 were synthesized in good yields from the reaction of sulfuryl chloride with 2-chloroethylamine or 3-chloropropylamine hydrochlorides, respectively, followed by treatment with a primary amine and triethylamine,
## Abstract Alkylation of 3βoxoβ1,2βthiazetidine 1,1βdioxide 2 yields the __N__βalkylated 3βoxoβΞ²βsultams 3aβi. Solvolysis with NaOH or NH~3~ selectively opens the Nο£ΏS bond forming the sulfonate carboxamides 4 and the sulfonamidocarboxamides 7, respectively. Furthermore, the hitherto unknown compou