引用本文:
Han Song CHEN, Zheng Ming LI, Zhong Wen WANG. A Convenient Synthesis of Pyrazolylpyrazoles Using α-Oxo Ketene S,S-and N,S-Acetals[J]. Chinese Chemical Letters,
1999, 10(8): 643-646.
Citation: Han Song CHEN, Zheng Ming LI, Zhong Wen WANG. A Convenient Synthesis of Pyrazolylpyrazoles Using α-Oxo Ketene S,S-and N,S-Acetals[J]. Chinese Chemical Letters, 1999, 10(8): 643-646.
Citation: Han Song CHEN, Zheng Ming LI, Zhong Wen WANG. A Convenient Synthesis of Pyrazolylpyrazoles Using α-Oxo Ketene S,S-and N,S-Acetals[J]. Chinese Chemical Letters, 1999, 10(8): 643-646.
A Convenient Synthesis of Pyrazolylpyrazoles Using α-Oxo Ketene S,S-and N,S-Acetals
摘要:
Substituted pyrazolylpyrazoles were synthesized through the reaction of hydrazine hydrate and α-oxo-(3,5-dimethyl-lH-pyrazole-1一yl) ketene S,S-and N.S-acetals, which were obtained from α-oxo-(3,5-dimethyl-lH-pyrazole-l-yl) acetophenone. Pyrazolylpyrazole was also prepared via α-oxo ketene N,O-acetal by way of ring chain transformation.
English
A Convenient Synthesis of Pyrazolylpyrazoles Using α-Oxo Ketene S,S-and N,S-Acetals
Abstract:
Substituted pyrazolylpyrazoles were synthesized through the reaction of hydrazine hydrate and α-oxo-(3,5-dimethyl-lH-pyrazole-1一yl) ketene S,S-and N.S-acetals, which were obtained from α-oxo-(3,5-dimethyl-lH-pyrazole-l-yl) acetophenone. Pyrazolylpyrazole was also prepared via α-oxo ketene N,O-acetal by way of ring chain transformation.
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Key words:
- Pyrazole
- / pyrazolylpyrazole
- / α-oxo-ketene dithioacetal
- / ring chain transformation
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