General-base catalyzed ring-closure reactions to 5-yanouracils：kinetic and mechanistic studies
碩士 === 國立成功大學 === 化學系碩博士班 === 94 === The ring-closure reactions of Z-ethyl[2-cyano-3- (substituted-amino)acry-loyl] carbamate, Z-3a~c, are general-base catalysis. Primary kinetic isotope effect of kH/kD = 1.40, the Brønsted β value of 0.174, and reduction of the NEt3-catalyzed ring-closure rates by...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/90933930938012748155 |