Practical Large-Scale Regioselective Zincation of Chromone Using TMPZnCl·LiCl Triggered by the Presence or Absence of MgCl<sub>2</sub>
作者:Lydia Klier、Dorothée S. Ziegler、René Rahimoff、Marc Mosrin、Paul Knochel
DOI:10.1021/acs.oprd.7b00032
日期:2017.4.21
commercially available amide base TMPZnCl·LiCl (TMP = 2,2,6,6-tetramethylpiperidyl). Additionally, in the presence of a Lewis acid such as MgCl2, zincation using TMPZnCl·LiCl occurs at C(2). These metalation reactions are carried out on a 50 mmol scale, and the metalation selectivities have been compared with the corresponding small-scale reactions (2 mmol). The resulting zinc organometallics undergo smooth
[EN] RECEPTOR INHIBITOR, PHARMACEUTICAL COMPOSITION COMPRISING SAME, AND USE THEREOF<br/>[FR] INHIBITEUR DE RÉCEPTEUR, COMPOSITION PHARMACEUTIQUE LE COMPRENANT ET SON UTILISATION<br/>[ZH] 受体抑制剂、包含其的药物组合物及其用途
IODOBENZOPYRAN-4-ONE DERIVATIVES HAVING FUNGICIDAL ACTIVITY
申请人:Bayer CropScience S.A.
公开号:EP1412344A1
公开(公告)日:2004-04-28
Iodobenzopyran-4-one derivatives having fungicidal activity
申请人:——
公开号:US20040192672A1
公开(公告)日:2004-09-30
The present invention relates to iodobenzopyran-4-one derivativespossessing fungicidal properties against phytopathogenic organisms, amethod for preparing some of these derivatives. their use for protecting plants, and fungicidal compositions comprising such derivatives incombination with one or more other lungicidal compounds.