Synthesis of Vicinal Quaternary All-Carbon Centers via Acid-catalyzed Cycloisomerization of Neopentylic Epoxides
作者:Matthias Schmid、Kevin R. Sokol、Lukas A. Wein、Sofia Torres Venegas、Christina Meisenbichler、Klaus Wurst、Maren Podewitz、Thomas Magauer
DOI:10.1021/acs.orglett.0c02296
日期:2020.8.21
Termination of the sequence occurs via Friedel–Crafts-type alkylation of the remote (hetero)arene linker. The transformation is efficiently promoted by sulfuric acid and proceeds best in 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) as the solvent. Variation of the substitution pattern provided detailed insights into the migration tendencies and revealed a competing disproportionation pathway of dihydronaphthalenes
Sulfone Group as a Versatile and Removable Directing Group for Asymmetric Transfer Hydrogenation of Ketones
作者:Vijyesh K. Vyas、Guy J. Clarkson、Martin Wills
DOI:10.1002/anie.202004658
日期:2020.8.17
The sulfone functional group has a strong capacity to direct the asymmetrictransferhydrogenation (ATH) of ketones in the presence of [(arene)Ru(TsDPEN)H] complexes by adopting a position distal to the η6‐arene ring. This preference provides a means for the prediction of the sense of asymmetric reduction. The sulfone group also facilitates the formation of a range of reduction substrates, and its
COMPOUNDS FOR THE TREATMENT OF CANCER AND INFLAMMATORY DISEASE
申请人:SHY Therapeutics LLC
公开号:US20170174699A1
公开(公告)日:2017-06-22
Provided herein are compounds that inhibit the phosphorylation of MAPK and thus are useful in compositions and methods for treating cancer and inflammatory disease.
Combating fungi with 1-phenoxy-2-pyridinyl-alkanols
申请人:Bayer Aktiengesellschaft
公开号:US04438122A1
公开(公告)日:1984-03-20
1-Phenoxy-2-pyridinyl(pyrimidinyl)-alkanols of the formula ##STR1## in which R represents alkyl, optionally substituted aryl or optionally substituted aralkyl, X represents a nitrogen atom or the CH group, Y represents halogen, alkyl, cycloalkyl, alkoxy, halogenoalkyl, alkylthio, or an optionally substituted phenyl, phenoxy, phenylalkoxy or phenylalkyl radical, and n represents 0 or an integer from 1 to 5, the Y's being selected independently of one another when n is 2, 3, 4 or 5, in the form of the free base, a salt or a metal salt complex thereof, which possess fungicidal properties.
Antimicrobial compositions comprising 1-(1,2,4-triazolyl-1')-2-phenoxy alkane derivatives as the active ingredient. The compositions are well tolerated and combine their non-toxic effect within an especially good antimycotic activity.