Method of producing acid fluorides from acid chlorides
申请人:Solvay Fluor und Derivate GmbH
公开号:US06723874B1
公开(公告)日:2004-04-20
Acid fluorides, for example carboxylic acid fluorides and sulfuryl fluoride are produced by reacting the corresponding acid chlorides with hydrogen fluoride adducts of ammonium fluoride or amine hydrofluorides (which act as a catalyst or as a fluorination agent). Consumed HF adducts may be regenerated with HF.
Synthesis of new polyhalogenoalkyl-containing phosphonates with an enaminone core and their use in the preparation of fluorinated heterocycles
作者:Karen V. Tarasenko、Olga V. Manoylenko、Valery P. Kukhar、Gerd-Volker Röschenthaler、Igor I. Gerus
DOI:10.1016/j.tetlet.2010.06.123
日期:2010.9
enaminone core were synthesized from readily available β-alkoxyvinyl polyhalogenoalkyl ketones by successive bromination, amination, and Arbuzov reaction. The new phosphonates were used for the syntheses of five- and six-membered heterocycles bearing both trifluoromethyl and methylenephosphonate groups.
Sulfonamido-and amidophenyl N-methylcarbamates and use as insecticides
申请人:Mobil Oil Corporation
公开号:US04051254A1
公开(公告)日:1977-09-27
There are provided phenyl N-methylcarbamates substituted in the 4-position with groups, such as alkanesulfamido, haloalkanesulfamido, alkoxyalkanamido, haloalkanamido, alkylthioalkanamido, or furoylamido. These compounds are effective for the control of several insect species as systemic and stomach poison insecticides, as larvicides, and as ovicides.
A Scalable and Regioselective Synthesis of 2-Difluoromethyl Pyridines from Commodity Chemicals
作者:Jean-Nicolas Desrosiers、Christopher B. Kelly、Daniel R. Fandrick、Larry Nummy、Scot J. Campbell、Xudong Wei、Max Sarvestani、Heewon Lee、Alexander Sienkiewicz、Sanjit Sanyal、Xingzhong Zeng、Nelu Grinberg、Shengli Ma、Jinhua J. Song、Chris H. Senanayake
DOI:10.1021/ol500402e
日期:2014.3.21
novo synthesis of difluoromethyl pyridines from inexpensive materials is reported. The pyridyl subunit is built around the difluoromethyl group rather than a late stage introduction of this moiety. This user-friendly approach allows access to a diverse range of substitution patterns on all positions on the ringsystem and on the difluoromethyl group.