Dihydrothiophenes. II. Preparation and properties of some alkylated 2,5-dihydrothiophenes
β Scribed by McIntosh, John M.; Goodbrand, H. Bruce; Masse, Gary M.
- Book ID
- 126161726
- Publisher
- American Chemical Society
- Year
- 1974
- Tongue
- English
- Weight
- 676 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0022-3263
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A series of 2,5-bis(diarylmethylene)-2.5dihydrothiophenes and their furan, selenophene, and N-methylpyrrole analogs were synthesized in three steps either starting from 2,5-dilithiated five-membered heteroaromatics and 2 equiv of diary1 ketones or from 2,5-diaroyl five-membered hetcroaromatics and 2
## The reactive species alene have been detected for the first generally applicable method for generating heterocyclic Below we report on the generation and spectroscopic detection of the hitherto unknown reactive intermediates 2,5-dimethylene-2,5\_dihydrothiophene 1 and tetramethylenetetrahydrot