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Volumn 51, Issue 38, 2010, Pages 5000-5002

New synthetic route for selectively substituted 1,n-diamines. Synthesis of N-aryl tetra- and pentamethylenediamines

Author keywords

[No Author keywords available]

Indexed keywords

DIAMINE; N ARYLPENTAMETHYLENEDIAMINE DERIVATIVE; N ARYLTETRAMETHYLENEDIAMINE DERIVATIVE; PIPERIDINE; PYRROLIDINE DERIVATIVE; SULFURIC ACID; UNCLASSIFIED DRUG;

EID: 78549246723     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2010.07.075     Document Type: Article
Times cited : (10)

References (35)
  • 1
    • 78549292177 scopus 로고    scopus 로고
    • U.S. Patent 5612329,Chem. Abstr. 1997, 126 238254
    • Callery, P. S.; Egorin, M. J.; Li, Y.; Yuan, Z. M. U.S. Patent 5612,329, 1997; Chem. Abstr. 1997, 126, 238254;
    • (1997)
    • Callery, P.S.1    Egorin, M.J.2    Li, Y.3    Yuan, Z.M.4
  • 2
    • 0346056055 scopus 로고    scopus 로고
    • WO 96,40,096,Chem. Abstr. 1997.126, 126897m
    • Frydman, B. PCT Int. Appl. WO 96,40,096, 1996; Chem. Abstr. 1997, 126, 126897m;
    • (1996) PCT Int. Appl.
    • Frydman, B.1
  • 8
    • 78549283542 scopus 로고    scopus 로고
    • U.S. 6872,852
    • Burns, M. R. U.S. 6872,852, 2005.
    • (2005)
    • Burns, M.R.1
  • 29
    • 0011932271 scopus 로고    scopus 로고
    • For reviews on microwave chemistry, see,Loupy, A., Ed.; Wiley-VCH: Weinheim
    • For reviews on microwave chemistry, see: Microwaves in Organic Synthesis; Loupy, A., Ed.; Wiley-VCH: Weinheim, 2002;
    • (2002) Microwaves in Organic Synthesis
  • 34
    • 85030588057 scopus 로고    scopus 로고
    • General procedure for synthesis of compounds 2: A mixture of the appropriate N- (ω-chloroalkyl)benzamide 3 (0.02 mol) and the corresponding arylamine (0.04 mol) was heated for 1 h under reflux in an oil bath at 120 °C. After cooling, the crude material was treated with hot water (10 mL) in order to extract the arylamine hydrochloride, and then heated for 5 minutes with 10% HCl (10 mL) and filtered before cooling. The filtrate was alkalinized with 10% NaOH to pH 14. The product was filtered, dried, and recrystallized from cyclohexane
    • General procedure for synthesis of compounds 2: A mixture of the appropriate N- (ω-chloroalkyl)benzamide 3 (0.02 mol) and the corresponding arylamine (0.04 mol) was heated for 1 h under reflux in an oil bath at 120 °C. After cooling, the crude material was treated with hot water (10 mL) in order to extract the arylamine hydrochloride, and then heated for 5 minutes with 10% HCl (10 mL) and filtered before cooling. The filtrate was alkalinized with 10% NaOH to pH 14. The product was filtered, dried, and recrystallized from cyclohexane.
  • 35
    • 85030577639 scopus 로고    scopus 로고
    • 4 (15 mL) was heated at reflux for 7-13 h and monitored by TLC. When the reaction was completed, the solution was made alkaline with 50% aqueous NaOH in an ice bath and extracted with methylene chloride (3 × 5 mL). The organic layers were pooled, washed with water, dried, and evaporated in vacuo affording the corresponding compounds 1 as oils which were purified by column chromatography (chloroform/methanol 8:2 to 1:1)
    • 4 (15 mL) was heated at reflux for 7-13 h and monitored by TLC. When the reaction was completed, the solution was made alkaline with 50% aqueous NaOH in an ice bath and extracted with methylene chloride (3 × 5 mL). The organic layers were pooled, washed with water, dried, and evaporated in vacuo affording the corresponding compounds 1 as oils which were purified by column chromatography (chloroform/methanol 8:2 to 1:1).


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