substituted 4-methylcoumarins (4-methyl-2H-1 -benzopyran-2-ones) have been recorded. The effects of an alkyl side-chain at C-3 on the chemical shift values and that of a methoxy or an acetoxy group
1H Nuclear Magnetic Resonance Study of Melt Polycondensation of 4,4′-Sulphonyldiphenol with Methyl- and Chloromethylphosphonic Dichloride
✍ Scribed by Natansohn, Almeria
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1986
- Tongue
- English
- Weight
- 257 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0007-1641
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