5 - (p - Hydroxyphenyl) - 4,6 - dicarboxy - 2 - (β-diethylaminopropanol)-cyclohexanedione-1,3 and Derivative 1
✍ Scribed by Papadakis, Philippos E.; Scigliano, Joseph
- Book ID
- 125931195
- Publisher
- American Chemical Society
- Year
- 1953
- Tongue
- English
- Weight
- 287 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0002-7863
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## Abstract The trimethylaluminum‐mediated Michael addition of ethyl phenyl‐H‐phosphinate to 1,2‐dihydrophosphinine oxides (**1A**) yielded 3‐(EtOPhP(O))‐1,2,3,6‐tetrahydrophosphinine oxides (**4**) in a selective manner, as a mixture of only two diastereomers. In the above type of reactions (e.g.,
We wish to report the polarographic behaviour of a series of substituted 1-(2,4,6-tribromo-5-hydroxyphenyl)-3-phenyl-2-propenones. Studies on l-(4-fluoro phenyl)-3-phenyl-2-propenones and 1-(2-thienyl)-3-phenyl-2-propenones were made and the results have been reported elsewhere ~'2. . Experimental
The preparation of a number of 2,3-dihydro-6-(hydroxyphenyl)-1,4-diazepinium salts (11 c -f) and of 1,2-dihydro-5-(hydroxyphenyl)-2-oxopyri1nidinium salts (17a, b) from 3-(hydroxypheny1)vinamidinium salts (10 b, c) is described. Attempted preparation of a 3-(2-hydroxypheny1)vinamidinium salt gave in