A facile synthesis of 3-methyl-2H-1-benzopyrans via claisen rearrangement
β Scribed by D Gopal; K Rajagopalan
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 117 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Several aryl-1(3-bromo-2-methyl-prop-2-ene) ethers 2 have been prep,ared an'd their thermal rearrangements in PEG-405 in the presence of N,N-diethylaniline were Found to yield the title compounds.
π SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract Ethyl 2β(chloromethyl)β2βhydroxyβ2__H__βchromeneβ3βcarboxylates **2a**β**2j** have been synthesized by reaction of substituted salicylaldehydes with ethyl 4βchloroβ3βoxobutanoate, in the presence of piperidine in CH~2~Cl~2~ at room temperature, in good yields.