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ChemicalBook CAS DataBase List 2-PHENYL-1,3-OXAZOLE-5-CARBOXYLIC ACID
106833-79-8

2-PHENYL-1,3-OXAZOLE-5-CARBOXYLIC ACID synthesis

8synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 4 steps
1: oxalyl dichloride; N,N-dimethyl-formamide / dichloromethane / 3 h / 20 °C / Inert atmosphere
2: triethylamine; dmap / dichloromethane / 5.25 h / 0 - 20 °C / Inert atmosphere
3: [bis(trifluoromethanesulfonyl)imidate](triphenylphosphine)gold(I); N-hydroxyphthalimide; tert.-butylnitrite; copper diacetate / 1,2-dichloro-ethane / 50 °C / Inert atmosphere
4: potassium hydroxide / ethanol / 12 h / Reflux; Inert atmosphere; Schlenk technique

References:

Mai, Shaoyu;Rao, Changqing;Chen, Ming;Su, Jihu;Du, Jiangfeng;Song, Qiuling [Chemical Communications,2017,vol. 53,# 75,p. 10366 - 10369]

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