Heterocyclic-substituted phenylsulfamates, and their use as herbicides
申请人:Hoechst Aktiengesellschaft
公开号:US04963180A1
公开(公告)日:1990-10-16
Compounds of the formula I or their salts ##STR1## wherein R.sup.1 denotes substituted alkyl; (subst.) alkenyl; (subst.) alkynyl; R.sup.2 denotes halogen; nitro; (subst.) alkyl or (subst.) alkoxy; R.sup.3 denotes hydrogen; alkyl; alkenyl or alkynyl; R.sup.4 denotes a heterocyclic radical or the formulae ##STR2## where E is CH or N; and n denotes 0, 1, 2 or 3, possess excellent herbicidal and plant growth-regulating properties.
WILLMS, LOTHAR;KEHNE, HEINZ;BAUER, KLAUS;BIERINGER, HERMAN
作者:WILLMS, LOTHAR、KEHNE, HEINZ、BAUER, KLAUS、BIERINGER, HERMAN
DOI:——
日期:——
Heterocyclisch substituierte Sulfamidsäurephenylester, Verfahren zu ihrer Herstellung und ihre Verwendung als Herbizide und Pflanzenwachstumsregulatoren
申请人:Hoechst Schering AgrEvo GmbH
公开号:EP0303114B1
公开(公告)日:1994-08-24
US4963180A
申请人:——
公开号:US4963180A
公开(公告)日:1990-10-16
Polymer-Supported <i>O</i>-Benzyl and <i>O</i>-Allylisoureas: Convenient Preparation and Use in Ester Synthesis from Carboxylic Acids
作者:Stefano Crosignani、Peter D. White、Rene Steinauer、Bruno Linclau
DOI:10.1021/ol0275062
日期:2003.3.1
copper(II)-catalyzed reaction of polymer-supported carbodiimide with the corresponding alcohols. These polymer-supported reagents were successfully employed to convert a series of carboxylic acids to methyl, benzyl, or allyl esters, in good yields. The products were obtained with high purity (>95% by NMR) after a simple resin filtration-solvent evaporation sequence.