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Volumn 28, Issue 6, 2007, Pages 913-914

Synthesis of 2-arylsubstituted imidazolone derivatives

Author keywords

2 Arylimidazolone; Amino acids; C C bond formation; Carbodiimide

Indexed keywords


EID: 34250838599     PISSN: 02532964     EISSN: 12295949     Source Type: Journal    
DOI: 10.5012/bkcs.2007.28.6.913     Document Type: Article
Times cited : (4)

References (27)
  • 5
    • 34250890560 scopus 로고    scopus 로고
    • Los, M. Synthesis and Biology of the Imidazolinone Herbicides in Pestic. Sci., Biotechnol., Proc. Int. Congr. Pestic. Chem., 6th ed.; Greenhalgh, R.; Roberts, T. R., Eds.; Blackwell: Oxford, U.K., 1987; pp 35-42.
    • (a) Los, M. Synthesis and Biology of the Imidazolinone Herbicides in Pestic. Sci., Biotechnol., Proc. Int. Congr. Pestic. Chem., 6th ed.; Greenhalgh, R.; Roberts, T. R., Eds.; Blackwell: Oxford, U.K., 1987; pp 35-42.
  • 8
    • 34250844835 scopus 로고    scopus 로고
    • New solid-phase synthesis of 2-aminoimidazolinones
    • poster P-48, Tübingen, Germany, October 3-6
    • (b) Visser, W.; Jung, G. New solid-phase synthesis of 2-aminoimidazolinones, poster P-48, International Combinatorial Chemistry Symposium in Tübingen, Germany, October 3-6, 1999.
    • (1999) International Combinatorial Chemistry Symposium
    • Visser, W.1    Jung, G.2
  • 27
    • 34250812383 scopus 로고    scopus 로고
    • General procedure for carbodiimide (2a, To a suspension of L-phenylalanine ethyl ester HCl salt 1a (10.0 g, 43.5 mmol) in 200 mL of dried CH2Cl2 was added phenylisocyanate (5.7 g, 47.9 mmol, 1.1 equiv, followed by an addition of triethylamine (5.3 g, 52.2 mmol, 1.2 equiv, at 0°C. The reaction mixture was stirred for 5 hr at room temperature and treated with 100 mL of water. The mixture was extracted with CH2Cl2. The combined extracts were dried over anhydrous MgSO4, filtered, and concentrated to give solid, which was washed with petroleum ether and dried in vacuo to provide the desired urea compound 2a (10.6 g, 82, as a white solid: 1H NMR (CDCl3, 300 MHz) δ7.30-7.06 (m, 10H, Ph, 6.84 (s, 1H, Ph-NH, 5.56 (1H, d, J, 7.9 Hz, CONH, 4.84 (1H, m, CHCO2Et, 4.18 (2H, q, J, 7.2 Hz, CHCO2CH2CH3, 3.14-3.05 2H, m, PhCH
    • +).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.