Studies on uracils : a facile one-pot synthesis of oxazino[4,5- d]-, pyrano[2,3-d]-, pyrido[2,3-d]- and pyrimido[4,5-d]pyrimidines using microwave irradiation in the solid state
IR@NEIST: CSIR-North East Institute of Science and Technology, Jorhat
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Title |
Studies on uracils : a facile one-pot synthesis of oxazino[4,5- d]-, pyrano[2,3-d]-, pyrido[2,3-d]- and pyrimido[4,5-d]pyrimidines using microwave irradiation in the solid state
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Creator |
DEVI, I
BORAH , H N BHUYAN , P J |
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Subject |
Organic Chemistry
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Description |
—N,N-Dimethyl-5-formylbarbituric acid 1 reacts with maleimide 2 and phenyl isocyanate/phenyl isothiocyanate 4 under
microwave-assisted conditions in the solid phase to afford pyrano[2,3-d]pyrimidines3 and oxazino[4,5-d]pyrimidines5 in excellent
yields. Under identical conditions, N,N-dimethyl-6-amino-5-formyluracil 6 reacts with 2 and 4 to give pyrido[2,3-d]pyrimidine
derivative 7 and pyrimido[4,5-d]pyrimidines 8 in high yields
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Date |
2004
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://neist.csircentral.net/317/1/1143TL_2004_45p.2405.pdf
DEVI, I and BORAH , H N and BHUYAN , P J (2004) Studies on uracils : a facile one-pot synthesis of oxazino[4,5- d]-, pyrano[2,3-d]-, pyrido[2,3-d]- and pyrimido[4,5-d]pyrimidines using microwave irradiation in the solid state. Tetrahedron Letter, 45. pp. 2405-2408. |
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Relation |
http://neist.csircentral.net/317/
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