PYRIDONE COMPOUND, AND AGRICULTURAL AND HORTICULTURAL FUNGICIDE HAVING THIS AS ACTIVE COMPONENT
申请人:Mitsui Chemicals Agro, Inc.
公开号:EP3611164A1
公开(公告)日:2020-02-19
Novel compounds controlling plant diseases are provided. Pyridone compounds of the invention are novel and can control plant diseases. The pyridone compounds of the invention encompass compounds of formula (1) and salts thereof.
Double Duty for Cyanogen Bromide in a Cascade Synthesis of Cyanoepoxides
作者:Zhou Li、Vladimir Gevorgyan
DOI:10.1002/anie.201006966
日期:2011.3.14
An unprecedented reaction mode of cyanogenbromide has been discovered. Under basic conditions, cyanogenbromide acts as an equivalent of both Br+ and CN− to convert enolizable ketones into the corresponding cyanoepoxides in good yields. This unique reaction mode provides new, one‐pot access to densely substituted cyanoepoxides from easily available ketones (see scheme).
of methyl aluminum complexes bearing chiral biphenol-type ligands were found to be highly active catalysts in the asymmetric reduction of heterocyclic ketones (S/C = 100 - 500, ee up to 99%). The protocol is suitable for a wide range of substrates and has a high tolerance to functional groups. The formed 2-heterocyclic-alcohols are valuable buildingblocks in drug discovery or can be used as ligands