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    • 51. 发明申请
    • Method for Preparing Substituted Pyrimidines
    • 取代嘧啶的制备方法
    • US20090054647A1
    • 2009-02-26
    • US11886653
    • 2006-05-12
    • Gary David Annis
    • Gary David Annis
    • C07D239/42
    • C07D239/42C07D239/30C07D239/36
    • Disclosed a method for preparing a compound of Formula 1, wherein R1 is cyclopropyl, 4-chlorophenyl or 4-bromophenyl; and R2 is C1-C14 alkyl; comprising contacting a compound of Formula 2 with a persulfate oxidant in the presence of a strong sulfur- or phosphorus-containing mineral acid and an oxidation resistant solvent. Also disclosed are methods for preparing the compound of Formula 2 from a compound of Formula 5 as well as compounds of Formula 6 and salts thereof, wherein R is NH2, Cl or OH; X is H or Cl; R1 is cyclopropyl, 4-chlorophenyl or 4-bromophenyl; and R2 is C1-C14 alkyl; provided that when R is NH2 or Cl, then X is Cl; which are useful a process intermediates.
    • 公开了制备式1化合物的方法,其中R 1是环丙基,4-氯苯基或4-溴苯基; R2为C1-C14烷基; 包括在强硫或磷的无机酸和抗氧化溶剂的存在下使式2的化合物与过硫酸盐氧化剂接触。 还公开了从式5化合物制备式2化合物的方法以及式6化合物及其盐,其中R是NH 2,Cl或OH; X是H或Cl; R1是环丙基,4-氯苯基或4-溴苯基; R2为C1-C14烷基; 条件是当R为NH 2或Cl时,则X为Cl; 这是一个有用的过程中间体。