Synthesis and Structural Characterization of Two Types of Chromene Derivatives Containing Pyrazolone or Indol-2-one: Reaction and Chemoselectivity of Carbonyl and Aldehyde Groups

大学化学 Pub Date : 2020-01-01 DOI:10.3866/pku.dxhx201907004

Xuange Zhang, Tianyu Lu, Yan Cai, Zihong Yan, Zhiwei Miao

引用次数: 0

Abstract

: Under the catalytic conditions of tetrahydropyrrole, an addition-elimination reaction of chromone aldehyde with methylpyrazolone or 2-indolinone is carried out to obtain two kinds of chromene derivatives containing pyrazolone or indol-2-one. The structures are identified by 1 H NMR, 13 C NMR, HPLC, HRMS and melting point measurements.

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两类含吡唑酮或吲哚-2-酮的铬胺衍生物的合成及结构表征:羰基和醛基的反应及化学选择性

:在四氢吡咯的催化条件下，铬醛与甲基吡唑啉酮或2-吲哚啉酮进行加消反应，得到两种含吡唑啉酮或吲哚-2-酮的铬衍生物。通过1h NMR, 13c NMR, HPLC, HRMS和熔点测量对其结构进行了鉴定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

大学化学

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发文量

5852

期刊介绍： University Chemistry is an educational research academic journal supervised by the Ministry of Education and co-sponsored by Peking University and the Chinese Chemical Society. It was founded in 1986 and changed to a monthly publication in January 2016. Its purpose is to promote and deepen the reform of university chemistry education and serve to improve the level of chemistry teaching in my country. The main columns are: Today's Chemistry, Teaching Research and Reform, Knowledge Introduction, Chemical Experiments, Teacher-Student Chats, Future Chemists, etc. The journal has been included in many databases such as China Journal Network Full-text Database, Wanfang Database, Taiwan Huayi Database, Chinese Science and Technology Journal Database (Full-text Edition), and American Chemical Abstracts.