作者:Richard D. Chambers、Martin P. Greenhall、John Hutchinson
DOI:10.1016/0040-4020(95)00883-a
日期:1996.1
In acid media, 1,3-diketones and 1,3-ketoesters can be fluorinated in high yield and often with high conversion mainly to the corresponding 2-fluoro- compounds. Diesters such as diethyl malonate do not react with fluorine under the same reaction conditions. The mechanism of these reactions has been investigated and while the identity of the electrophilic fluorinating species is uncertain, we believe
Room-temperature reactions of CsSO4F with organic molecules containing heteroatoms
作者:Stojan Stavber、Marko Zupan
DOI:10.1039/c39830000563
日期:——
Room-temperature fluorination of pentane-2,4-dione with CsSO4F gave 3-fluoro and 1,3-difluoro derivatives, while 5,5-difluorobarbituric acid was formed in high yield in a 2 h reaction at 100 °C; 1,3-dimethyluracil was converted in methanol via cis- and trans-5-fluoro-6-methoxy derivatives into 5-fluoro-1,3-dimethyluracil in high yield and uridine into 5-fluorouridine.
N-fluoro perfluoroalkylsulphonimides: efficient reagents for the fluorination of 1,3-dicarbonyl derivatives
作者:Ze-Qi Xu、Darryl D. DesMarteau、Yoshihiko Gotoh
DOI:10.1039/c39910000179
日期:——
Fluorination of 1,3-dicarbonyl derivatives with N-fluoro sulphonimides afforded either 2-fluoro or 2,2-difluoro products in high yields.
1,3-二羰基衍生物与氟磺酰亚胺的氟化反应可以高产率地生成2-氟或2,2-二氟产物。
Reactions of trifluoroamine oxide: a new method for selective fluorination of 1,3-diketones and β-ketoesters
作者:Om D Gupta、Jean'ne M Shreeve
DOI:10.1016/s0040-4039(03)00467-2
日期:2003.3
Fluorination of 1,3-diketones and β-ketoesters with trifluoroamine oxide in the presence of tetrabutylammonium hydroxide (TBAH) provides a one step route to mono- and difluoro-products selectively fluorinated at the α-position in good yields.
Room temperature fluorination of 1,3-diketones and enol acetates with xenon difluoride
作者:Barbara Zajc、Marko Zupan
DOI:10.1039/c39800000759
日期:——
Fluorination of 1,3-diketones with xenon difluoride in the presence of the insoluble cross-linked polystyrene–4-vinylpyridine complex with borontrifluoride and insoluble cross-linked polystyrene–4-vinyl-pyridine resins resulted in the formation of mono- and di-fluoro products, while reactions with enol acetates in the presence of hydrogen fluoride gave α-fluoroketones.