I211 Genbve 4 (5. V .86) ~ Comparative results on the reduction of 4,6,7,8-tetrahydro-7,7-dimethyl-2H-1 -benzopyran-2,5(3H)-diones 1 are reported. Hydride reduction (LiAIH, in EtzO or NaBH, in i-PrOH) affords 2,3,4,6,7,8-hexahydro-5H-l-benzopyran-5-ones 5 in 30-60 % isolated yield. Photochemical red
β¦ LIBER β¦
On 6-(thenoyl)-7,8-dichloro-4-oxo-4H-1-benzopyran-2-carboxylic acid
β Scribed by Paola Montanari; Paolo Da Re; Piero Valenti
- Book ID
- 112129029
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1988
- Tongue
- English
- Weight
- 72 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0022-152X
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