The Comparative Study on Retro Diels-Alder(RDA) Fragmentation under Fast Atomic Bombardment(FAB) and Chemical lonization(CI)

Acta Scientiarum Naturalium Universitatis Pekinensis

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The Comparative Study on Retro Diels-Alder(RDA) Fragmentation under Fast Atomic Bombardment(FAB) and Chemical lonization(CI)

LIN Xiaoyuan, HE Xiaoran, YU Zhenpei, XU Jiaxi

College of Chemistry and Molecule Engineering, Peking University, Beijing, 100871

Received:1996-09-06 Online:1997-03-20 Published:1997-03-20

在FAB和CI条件下的RDA碎裂反应的比较研究

林孝元, 贺晓然, 俞振培, 许家喜

北京大学化学与分子工程学院，北京，100871

Abstract

Abstract: The comparative study was carried out on RDA fragmentationof some derivatives of oxazinono-benzothiazepine under FAB and CI. It was found that the intensity ratio of product ions to protonated ion MH⁺ under FAB were significantly lower than that under CI. Itwas shown that the mechanism of protonation under FAB was quite different from that under CI. A proposal mechanism of protonation under FAB was discussed.

Key words: RDA fragmentation, FAB mechanism

摘要： 对一些嗪酮并苯并硫氮杂衍生物在FAB和CI条件下的RDA碎裂反应进行了比较研究。在FAB条件下，产物离子与质子化分子MH⁺的强度比明显低于CI。结果表明，FAB质子化机理与CI是不同的。本文对FAB质子化机理进行了探讨。

关键词: RDA碎裂, FAB机理

CLC Number:

O657.6

LIN Xiaoyuan,HE Xiaoran,YU Zhenpei,XU Jiaxi. The Comparative Study on Retro Diels-Alder(RDA) Fragmentation under Fast Atomic Bombardment(FAB) and Chemical lonization(CI)[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

林孝元, 贺晓然, 俞振培, 许家喜. 在FAB和CI条件下的RDA碎裂反应的比较研究[J]. 北京大学学报（自然科学版）.

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URL: https://xbna.pku.edu.cn/EN/

https://xbna.pku.edu.cn/EN/Y1997/V33/I2/158

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The Comparative Study on Retro Diels-Alder(RDA) Fragmentation under Fast Atomic Bombardment(FAB) and Chemical lonization(CI)

在FAB和CI条件下的RDA碎裂反应的比较研究

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