SCOPUS 정보 검색 플랫폼

Synlett

Volumn , Issue 9, 2008, Pages 1287-1288

N-methylimidazole-promoted efficient synthesis of functionalized 1,3-oxazoline-2-thiones under solvent-free conditions

(4) Yavari, Issa a Hossaini, Zinatossadat a Souri, Sanaz a Sabbaghan, Maryam a

a TARBIAT MODARES UNIVERSITY (Iran)

Author keywords

Ammonium thiocyanate; Benzoyl chloride; Ethyl 2 chloroacetoacetate; Ethyl bromopyruvate; N methylimidazole; Oxazole

Indexed keywords

1 METHYLIMIDAZOLE; ACETIC ACID DERIVATIVE; CARBOXYLIC ACID DERIVATIVE; CHLORIDE; ETHYL 2 CHLOROACETOACETATE; OXAZOLINE DERIVATIVE; PYRUVIC ACID DERIVATIVE; SOLVENT; THIOCYANIC ACID DERIVATIVE;

ARTICLE; CHEMICAL REACTION; SYNTHESIS;

EID: 45749107622 PISSN: 09365214 EISSN: None Source Type: Journal
DOI: 10.1055/s-2008-1078403 Document Type: Article

Times cited : (12)

References (14)

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- General Procedure for the Preparation of Compounds 4 and 11: A stirred mixture of ammonium isothiocyanate (0.15 g, 2 mmol) and acid chloride 2 (2 mmol) was warmed at about 90°C in a water bath for 5 min and ethyl bromopyruvate (0.39 g, 2 mmol) or ethyl 2-chloroaceto acetate (0.33 g, 2 mmol) was added slowly. The mixture was allowed to cool to r.t. and N-methylimidazole (0.032 g, 20 mol, was added. The reaction mixture was stirred for 12 h and extracted with Et2O (2 mL) to afford the pure title compounds. Compound 4a: pale yellow crystals; yield: 0.38 g (85, mp 129-131°C. 1R(KBr, 1724, 1631, 1585, 1518, 1470 cm-1. 1H NMR: δ, 1.45 (t, 3J, 7.2 Hz, 3 H, Me, 4.46 (q, 3 J, 7.2 Hz, 2 H, OCH2, 7.52 (t, 3 J, 7.8 Hz, 2 H, 2 x CH, 7.61 (t, 3J, 6.1 Hz, 1 H, CH, 7.65 (s, 1 H, CH, 7.52 d, 3J, 6.1 Hz, 2 H, 2 x C
- 4S (291.32): C, 57.72; H, 4.50; N, 4.81. Found: C, 57.76; H, 4.54; N, 4.80.

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.