A general route to 3-unsubstituted 1,5-diaryl-2,4-pentanediones and -4-Methoxy-2-pentanones
✍ Scribed by Juha Pulkkinen; Jouko Vepsäläinen; Reino Laatikainen
- Book ID
- 103409277
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 152 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4039
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A new procedure for the synthesis of 2,3-diaryl-3,4-dihydro-4-hydroxy-1(2H)isoquinolones is described rn which the cis-isomer predominates. Dehydration leads to 2,4-diarylisocarbostyrils. The synthetic utility of metallated phthalide derivatives has recently received considerable attention for the
## Abstract The pyrolysis of 1‐aroylamino‐4,5‐diphenyl‐1,2,3‐triazoles 1 yields, pressumably __via__ the 4,5‐diphenyl‐1,2,3‐triazolyl radical (2a), 2,3‐diphenyl‐2__H__‐azirine (11a) and 2‐aryl‐4,5‐diphenylimidazoles 14 as the major products. Upon irradiation 1‐benzoylamino‐4,5‐diphenyl‐1,2,3‐triazo