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ChemInform 2014, 45, issue 43 © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Fused pyrimidine derivatives R 0515 DOI: 10.1002/chin.201443172 Urea/Thiourea as Ammonia Surrogate: A Catalyst-Free Synthesis of 2-Substi- tuted 2,3-Dihydroquinazolin-4(1H)-ones/Quinazoline-4(3H)-ones. — The proce- dure is operationally simple and does not involve the use of any metal, other toxic, expensive catalysts or reagents and inert atmosphere. If thiourea is employed in the reaction, the yields are slightly lower compared to urea. — (NAIDU, P. P.; RAGHUNADH, A.; RAO, K. R.; MEKALA, R.; BABU, J. M.; RAO, B. R.; SIDDAIAH, V.; PAL*, M.; Synth. Commun. 44 (2014) 10, 1475-1482, http://dx.doi.org/10.1080/00397911.2013.862551 ; Dr. Reddy's Inst. Life Sci., Univ. Hyderabad, Hyderabad 500 046, India; Eng.) — C. Cyrus 43- 172

ChemInform Abstract: Urea/Thiourea as Ammonia Surrogate: A Catalyst-Free Synthesis of 2-Substituted 2,3-Dihydroquinazolin-4(1H)-ones/Quinazoline-4(3H)-ones

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Page 1: ChemInform Abstract: Urea/Thiourea as Ammonia Surrogate: A Catalyst-Free Synthesis of 2-Substituted 2,3-Dihydroquinazolin-4(1H)-ones/Quinazoline-4(3H)-ones

Fused pyrimidine derivativesR 0515 DOI: 10.1002/chin.201443172

Urea/Thiourea as Ammonia Surrogate: A Catalyst-Free Synthesis of 2-Substi-tuted 2,3-Dihydroquinazolin-4(1H)-ones/Quinazoline-4(3H)-ones. — The proce-dure is operationally simple and does not involve the use of any metal, other toxic, expensive catalysts or reagents and inert atmosphere. If thiourea is employed in the reaction, the yields are slightly lower compared to urea. — (NAIDU, P. P.; RAGHUNADH, A.; RAO, K. R.; MEKALA, R.; BABU, J. M.; RAO, B. R.; SIDDAIAH, V.; PAL*, M.; Synth. Commun. 44 (2014) 10, 1475-1482, http://dx.doi.org/10.1080/00397911.2013.862551 ; Dr. Reddy's Inst. Life Sci., Univ. Hyderabad, Hyderabad 500 046, India; Eng.) — C. Cyrus

43- 172

ChemInform 2014, 45, issue 43 © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim