(<i>Z</i>)<i>-</i>Trifluoromethyl-Trisubstituted Alkenes or Isoxazolines: Divergent Pathways from the Same Allene
作者:Chaolun Liu、Glenn P. A. Yap、Casey A. Rowland、Marcus A. Tius
DOI:10.1021/acs.orglett.0c02546
日期:2020.9.18
protonation of trifluoromethyl allenes leads to tri- or tetrasubstituted alkenes with high (Z)-selectivity. Treatment of the same allenes with catalytic Au(I) initiates a reaction cascade that produces isoxazolines in high yield.
The invention relates to isoxazolo[5,4-b]pyridine compounds of formula (I), to the agriculturally useful salts of isoxazolo[5,4-b]pyridine compounds of formula (I), and to their use as herbicides.
POSITIVE ALLOSTERIC MODULATORS OF MUSCARINIC M2 RECEPTOR
申请人:Bayer Pharma Aktiengesellschaft
公开号:US20180297994A1
公开(公告)日:2018-10-18
The present application relates to positive allosteric modulators of the muscarinic M2 receptor, especially to novel 7-substituted 1-arylnaphthyridine-3-carboxamides, to processes for preparation thereof, to the use thereof, alone or in combinations, for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, in particular for treatment and/or prevention of cardiovascular disorders and/or renal disorders.
Compounds of the general formula ##STR1## or a pharmaceutically or agriculturally acceptable acid addition salt thereof wherein R is 5-chloro-2-pyridyl, phenyl or phenyl substituted by from one to three substituents, each independently selected from F, Cl, Br, I, CF.sub.3, (C.sub.1 -C.sub.4)alkyl and (C.sub.1 -C.sub.4)alkoxy; and n is zero or an integer from 1 to 5; method for their use in combatting fungal infections in plants, seeds and animals, including humans; and pharmaceutical and agricultural compositions containing them.
A Major Advance in the Synthesis of Fluoroalkyl Pyrazoles: Tuneable Regioselectivity and Broad Substitution Patterns
作者:Etienne Schmitt、Armen Panossian、Jean-Pierre Vors、Christian Funke、Norbert Lui、Sergiy Pazenok、Frédéric R. Leroux
DOI:10.1002/chem.201601621
日期:2016.8.1
A novel approach towards highly functionalized fluoroalkylpyrazoles was developed by using fluoroalkylaminoreagents in combination with a variety of fluorinated ketimines. Tuneable introduction of fluoroalkyl groups in the 3‐ and 5‐positions was possible by using vinamidinium intermediates or the corresponding enamino ketones after hydrolysis. These high‐value building blocks can give rise to a