151293-11-7Relevant articles and documents
4-Nitro-2-phenyloxazole: an Electrophilic Dienophile for Normal Diels-Alder Reactions in the Oxazole Series
Nesi, Rodolfo,Turchi, Stefania,Giomi, Donatella,Papaleo, Sandro
, p. 978 - 979 (1993)
The title compound 2, obtained by thermal isomerization of the corresponding nitroisoxazole 1, is found to undergo cycloaddition processes with 2,3-dimethylbuta-1,3-diene and cyclohexa-1,3-diene, respectively.
Organocatalytic syntheses of benzoxazoles and benzothiazoles using aryl iodide and oxone via C-H functionalization and C-O/S bond formation
Alla, Santhosh Kumar,Sadhu, Pradeep,Punniyamurthy, Tharmalingam
, p. 7502 - 7511 (2014/09/16)
An organocatalytic protocol for the syntheses of 2-substituted benzoxazoles and benzothiazoles is described from alkyl-/arylanilides and alkyl-/arylthioanilides using 1-iodo-4-nitrobenzene as catalyst and oxone as an inexpensive and environmentally safe terminal oxidant at room temperature in air via oxidative C-H functionalization and C-O/S bond formation. The procedure is simple and general and provides an effective route for the construction of functionalized 2-alkyl-/arylbenzoxazoles and 2-alkyl-/arylbenzothiazoles with moderate to high yields. The synthetic and mechanistic aspects have been described.
Cobalt-catalyzed intramolecular C-N and C-O cross-coupling reactions: Synthesis of benzimidazoles and benzoxazoles
Saha, Prasenjit,Ali, Md Ashif,Ghosh, Pokhraj,Punniyamurthy, Tharmalingam
experimental part, p. 5692 - 5699 (2011/02/18)
Cobalt(ii)-complex catalyzes efficiently the intramolecular C-N and C-O cross-couplings of Z-N′-(2-halophenyl)-N-phenylamidines and N-(2-bromophenyl)benzamides to afford the corresponding substituted benzimidazoles and benzoxazoles in the presence of K2CO3 at moderate temperature. The protocol is general, air stable and affords the products selectively in moderate to high yield.
