Journal
HETEROCYCLES
Volume 90, Issue 2, Pages 939-949Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-14-S(K)59
Keywords
Thiazole/Oxazole; Rhodium-Catalyzed Reaction; Equilibrium Reaction; 2-Thiolation Reaction; 2-(Methylthio)thiazole
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [21229001]
- Asahi Glass Foundation
- [22689001]
- [25109503]
- Grants-in-Aid for Scientific Research [25109503] Funding Source: KAKEN
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RhH(PPh3)(4) and 1,3-bis(dicyclohexyl)phosphinopropane (dcypp) catalyze the 2-methylthiolation of oxazoles and thiazoles using 2-(methylthio)thiazole as a thiolating reagent. The methylthio transfer reaction is under equilibrium, and various 2-methylthiolated thiazoles and oxazoles were obtained in moderate to good yields by removing thiazole under refluxing o-dichlorobenzene.
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