公开(公告)号：US20160009650A1

公开(公告)日：2016-01-14

申请号：US14794450

申请日：2015-07-08

Applicant: DOW AGROSCIENCES LLC

Inventor： James M. Renga ,  Yuanming Zhu ,  Gregory T. Whiteker ,  Nakyen Choy ,  Kenneth E. Stockman

IPC: C07D213/84 ,  C07D213/803

CPC classification number: C07D213/803 ,  C07D213/79 ,  C07D213/84 ,  C07D307/54

Abstract: 4,6-Dibromo-3-hydroxypicolinonitrile may be prepared from furfural in a series of chemical steps selected from cyano-amination, amine salt formation and bromination-rearrangement. 4-Alkoxy-3-hydroxypicolinic acids may be conveniently prepared from 4,6-dibromo-3-hydroxypicolinonitrile in a series of chemical steps selected from bromo substitution, nitrile hydrolysis and halogen reduction.

Abstract translation: 4,6-二溴-3-羟基吡啶腈可以从选自氰基胺化，胺盐形成和溴化重排的一系列化学步骤中由糠醛制备。 4-烷氧基-3-羟基吡啶甲酸可以从选自溴取代，腈水解和卤素还原的一系列化学步骤中方便地从4,6-二溴-3-羟基吡啶腈制备。

公开(公告)号：US20150183750A1

公开(公告)日：2015-07-02

申请号：US14584368

申请日：2014-12-29

Applicant: DOW AGROSCIENCES LLC

Inventor： Nakyen Choy ,  Ronald Ross, JR.

IPC: C07D239/47

CPC classification number: C07D239/47 ,  A01N43/54

Abstract: Provided herein are 5-fluoro-4-imino-3-(alkyl/substituted alkyl)-1-(arylsulfonyl)-3,4-dihydropyrimidin-2(1H)-one and processes for their preparation which may include the use of an alkali alkoxide and an alkylating agent

Abstract translation: 本文提供的是5-氟-4-亚氨基-3-（烷基/取代的烷基）-1-（芳基磺酰基）-3,4-二氢嘧啶-2（1H） - 酮及其制备方法，其可以包括使用 碱金属醇盐和烷基化剂