Fries rearrangementLewis acid-catalyzed rearrangement of phenol esters to 2- or 4-ketophenols.doi:10.1007/978-3-642-01053-8_103Jie Jack LiSpringer Berlin Heidelberg
2000 The mechanism for the photo-Fries rearrangement of phenyl acetate and biphenylyl acetates were reinvestigat- ed in phenol (or phenol derivatives) containing media. The results showed that the phenol (or phenol deriva- tives) which is the most common by-product of Fries reaction reacts ...
Fries Rearrangement Photo‐Fries RearrangementPhoto‐Fries Rearrangementdoi:10.1002/9780470638859.conrr497ortho / para -acyl phenolHammett σ constantsphenol para - t -butylbenzoateLewis acidThe photo-initiated rearrangement of phenyl or aryl esters is generally known as the photo-Fries rearrangement or ...
反应时间由2h缩短到8min,收率由89,5ck提高到93.4%: 关键词:微波照射;Fries重排;高级脂肪酸酚酯;(2-羟基-5一甲基)苯基一1_十二酮 中图分类号:TQ244.2 文献标识码:A 文章编号:1003—5214(2004)03—0230—03 Synthesisof(2-Hydroxy-5-methy1)phenyi-1-dodecanoneby Microwave-enhancedFriesRearrangement YUAN...
β-Cyclodextrin effects on photo-Claisen rearrangement of allyl phenyl ether The photo rearrangement of allyl phenyl ether () in water and in solutions containing β-cyclodextrin (β-CD) leads to the () and () allyl phenols and phenol () as principal products. The substrate associates with β...
ChemInform Abstract: PHOTO-FRIES REARRANGEMENT: SYNTHESIS OF ALKYL HYDROXYARYL KETONESphotochemistry, radiation chemistry, chemoluminescenceDie Photolyse von Thymylestern (I) in Methanol führt selektiv zu p-Acylphenolen (II).doi:10.1002/chin.198210142...
The photo-Fries rearrangement which was first reported (1,2) in the early 1960's has some potential in the design of photoresist materials since it involves the transformation of molecules such as phenolic esters into free phenols, thereby providing a route to selective image development by differ...
the latter was exclusively formed by consecutive reaction upon RMB, via Fries rearrangement. This suggests that (i) RMB is not directly transformed, once formed, to 2,4-DHB inside catalyst porosity, since otherwise this would correspond to a direct contribution in the formation of this compound ...
Fries RearrangementLewis acid-catalyzed rearrangement of phenol esters and lactams to 2- or 4-ketophenols. Also known as the FriesFinck rearrangement.doi:10.1007/978-3-030-50865-4_55Jie Jack Li
Zeolite NCL-1 catalyses Fries rearrangement of phenyl acetate into o- and p-hydroxy acetophenone (HAP) with good (65–80%) selectivity under vapor phase conditions. The p/o ratio ranged between 0.5 and 0.6. Phenol was major by-product (15–25%) along with some unidentified higher boiling...