A Regioselective Synthesis of 2,4-Dialkyl Resorcinols.
โ Scribed by Scott S. Ceglia; Michael H. Kress; Todd D. Nelson; James M. McNamara
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 14 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract Reduction of 2,4โdiacylpyrroles followed by dehydration to prepare the divinylpyrroles has been studied. The __N__โphenylsulfonyl group exhibited directing ability at the 4โposition during the reduction of 2,4โdiacylpyrrole and complete regioselectivity was achieved for formations of th
The extraction of 4-(2-pyridylazohesorcinol (PAR) and 4-(2-thiazolylazo)resorcinol (TAR) with chloroform alone and in the presence of tetraphenylarsonium or tetraphenylphosphonium chloride (Ph,XCl) was studied. In the optimum pH range 3.5-5 for PAR and 1.5-5 for TAR, 94-95% of the reagents was extra