1-benzyloxy-4-iodo-5-(4-tolyl)-pyrazole 在
palladium on activated charcoal 盐酸 、 lithium hydroxide 、 正丁基锂 、 氢气 作用下,
以
四氢呋喃 、 甲醇 、 正己烷 为溶剂,
反应 6.45h,
生成 hydrochloride salt of amino-[1-hydroxy-5-(4-tolyl)-pyrazol-4-yl]-acetic acid
参考文献:
名称:
Synthesis of 1-hydroxypyrazole glycine derivatives
摘要:
A series of novel alpha-amino acids containing the 1-hydroxypyrazole ring has been prepared by addition of organomagnesium or organolithium intermediates to diethyl N-Boc-iminomalonate as an electrophilic glycine equivalent. Electrophiles, aryl and heteroaryl substituents were introduced in the pyrazole ring. (C) 2002 Published by Elsevier Science Ltd.
Synthesis of 1-hydroxypyrazole glycine derivatives
摘要:
A series of novel alpha-amino acids containing the 1-hydroxypyrazole ring has been prepared by addition of organomagnesium or organolithium intermediates to diethyl N-Boc-iminomalonate as an electrophilic glycine equivalent. Electrophiles, aryl and heteroaryl substituents were introduced in the pyrazole ring. (C) 2002 Published by Elsevier Science Ltd.