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Volumn 19, Issue 1, 2008, Pages 184-193

Efficient synthesis of new 1-[alkyl(aryl)]-5-(3,3,3-trihalo-2- oxopropylidene)pyrrolidin-2-ones

Author keywords

Methyl 4 methoxy 6 oxo 7,7,7 trihalo 4 heptenoates; Pyrrolidin 2 ones; CCCC+N cyclisation

Indexed keywords


EID: 39449115976     PISSN: 01035053     EISSN: 16784790     Source Type: Journal    
DOI: 10.1590/S0103-50532008000100026     Document Type: Article
Times cited : (18)

References (15)
  • 8
    • 85036907710 scopus 로고    scopus 로고
    • Oliveira, G.; Master Dissertation 2005, Universidade Federal de Santa Maria, Brazil. Precursors 1 and 2 were identified from mass spectrometric and 1H /13C NMR data.
    • Oliveira, G.; Master Dissertation 2005, Universidade Federal de Santa Maria, Brazil. Precursors 1 and 2 were identified from mass spectrometric and 1H /13C NMR data.
  • 15
    • 33746107563 scopus 로고    scopus 로고
    • Data for methyl 3-(2-methyl-7-(trifluoromethyl)pyrazolo-[1,5-a, pyrimidin-5-yl)propanoate (7) yield 94, mp 124-125 °C, anal. calcd for C12H12F3N3O2: C, 50.18; H, 4.21; N, 14.63, found C, 50.35; H, 4.02; N, 13.83, 1H NMR (400 MHz, CDCl3, δ 2.55 (s, Me, 2.91 (t, 3JHH 7.5 Hz, CH2, 3.20 (t, 3JHH 7.5 Hz, CH2, 3.7 (s, OMe, 6.51 (s, 1H, 6.99 (s, 1H, 13C NMR (100 MHz, CDCl3, δ 14.7 (Me, 31.2 (CH2, 32.4 (CH2, 51.8 (OMe, 96.9 (Pyrim, 105.7 (Pyr, 119.4 (q, 1JCF 285 Hz, CF3, 133.3 (q, 1JCF 32 Hz, C7, 156.4 (C2, 159.1 (C5, 150.5 (C3a) 172.9 (COOR) and 3-(2-methyl-7-(trichloromethyl) pyrazolo-[1,5-a]-pyrimidin-5-yl)propanoate (8) yield 84, mp 191-193 °C, anal. calc
    • 3), 94.6 (Pyrim), 102.1(Pyr), 142.2 (C7), 152.8 (C3a), 153.4 (C2), 157.9 (C5), 172.3 (COOR). For experimental details see Martins, M. A. P.; Cunico, W.; Scapin, E.; Emerich, D. J.; Fiss, G. F.; Rosa, F. A.; Zanatta, N.; Bonacorso, H. G.; Flores, A. F. C.; Lett. Org. Chem. 2006, 3, 358.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.