The Synthesis of 9, 10-dimethyl[7]helicene and 8, 11-diaza[7]helicene
โ Scribed by Howarth, J.; Finnegan, J.
- Book ID
- 121266692
- Publisher
- Taylor and Francis Group
- Year
- 1997
- Tongue
- English
- Weight
- 213 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0039-7911
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Wi wish to report that [6], 171, [8] and [S]helicene undergo thermal racemisatlon when heated, in evacuated sealed tubes, slightly above the melting points of the respective pure antipodes b). [9]Helicene [a]57g-14300 is thus completely racemised in 10 minutes at 380'. Pure optically inactive [9]hel
## Abstract magnified image A series of sixteen new derivatives have been obtained and all have potentially useful pharmacological activity. The treatment of 7โ[(__o__โchloro and __p__โbromo)phenyl]โ7,8,9,10,11,12โhexahydrobenz[__c__]acridinโ8โone and Lawesson's reagent obtains the corresponding 7