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Volumn , Issue 12, 2009, Pages 2020-2022

Synthesis of highly substituted pyridines via a one-pot, three-component cascade reaction of malononitrile with aldehydes and S-alkylisothiouronium salts in water

Author keywords

2 amino 4 aryl(alkyl) 6 sulfanyl pyridine 3,5 dicarbonitrile; Green chemistry; Multicomponent reactions; S alkylisothiouronium salts; Thiols

Indexed keywords

2 AMINO 4 PHENYL 6 (METHLSULFANYL)PYRIDINE 2,5 DICARBONITRILE; ALDEHYDE; ALDEHYDE DERIVATIVE; MALONONITRILE; PYRIDINE DERIVATIVE; THIOL; THIOUREA DERIVATIVE; UNCLASSIFIED DRUG; WATER;

EID: 67749122289     PISSN: 09365214     EISSN: 14372096     Source Type: Journal    
DOI: 10.1055/s-0029-1217529     Document Type: Article
Times cited : (18)

References (30)
  • 27
    • 0005187595 scopus 로고    scopus 로고
    • Benefts and Challenges of Applying Phase-Transfer Catalysis Technology in the Pharmaceutical Industry
    • Gadamasetti, K. G, Ed, Marcel Dekker: New York
    • (b) Halpern, M. E. Benefts and Challenges of Applying Phase-Transfer Catalysis Technology in the Pharmaceutical Industry, In Process Chemistry in the Pharmaceutical Industry; Gadamasetti, K. G., Ed.; Marcel Dekker: New York, 1999, 283.
    • (1999) Process Chemistry in the Pharmaceutical Industry , pp. 283
    • Halpern, M.E.1
  • 30
    • 67749115615 scopus 로고    scopus 로고
    • Representative Procedure for the Synthesis of Compound 3a A mixture of benzaldehyde (106 mg, 1 mmol, malononitrile (132 mg, 2 mmol, NaOH (120 mg, 3 mmol, and SDS (29 mg, 0.1 mmol) in H2O (10 mL) was stirred for 10 min at r.t. The S-methylisothiouronium sulfate (139 mg, 1 mmol) was added. The reaction mixture was further stirred for 50 min until the completion of the reaction (monitored by TLC, The reaction mixture was then filtered and washed with H2O to give the crude solid, which was recrystallized from MeCN to furnish the crystals of 2-amino-4-phenyl-6- methylsulfanylpyridine-3,5-dicarbonitrile (238 mg, 89, mp 295-296 °C. 1H NMR (300 MHz, CDCl3, δ, 2.59 (s, 3 H, SCH 3, 5.67 (br s, 2 H, NH2, 7.50-7.55 (m, 5 H, Ph, 13C NMR 75 MHz, DMSO-d6, δ, 12.79, 85.55, 93.49, 115.31, 115.46, 128.42, 128.71, 130.33, 133.98, 158.17, 159.72, 167.53. Anal. Calcd fo
    • 1H NMR and mp which were consistent with the reported data (see Supporting Information).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.