Reaction of 1,2-dibromoethane with primary amines: Formation of N,N′-disubstituted ethylenediamines RNH-CH2CH2-NHR and homologous polyamines RNH-[CH2CH2NR]n-H
(d) Andres A., Bazzicalupi C., Bencini A., Bianchi A., Fusi V., Garcia-España E., Giorgi C., Nardi N., Paoletti P., Ramirez J.A., Valtancoli B. J. Chem. Soc., Perkin Trans. 2. 1994;2367-2373.
For reviews see: (a) Smith P.E.S. The Chemistry of Open-Chain Organic Nitrogen Compounds. Vol. I:1965;W.A. Benjamin, New York, (b) Spiegelberger G. Herstellung von Aminen. Müller E. 4th ed. Houben-Weyl, Methoden der organischen Chemie. Vol. XI/1:1957;24 Georg Thieme, Stuttgart, (c) Theodoridis G. Tetrahedron. 56:2000;2339-2358. (N-protective groups) (d) Wurziger H. Kontakte (Darmstadt). 3:1987;8-11. (monoalkylation of amines).
For reviews see: (a) Smith P.E.S. The Chemistry of Open-Chain Organic Nitrogen Compounds. Vol. I:1965;W.A. Benjamin, New York, (b) Spiegelberger G. Herstellung von Aminen. Müller E. 4th ed. Houben-Weyl, Methoden der organischen Chemie. Vol. XI/1:1957;24 Georg Thieme, Stuttgart, (c) Theodoridis G. Tetrahedron. 56:2000;2339-2358. (N-protective groups) (d) Wurziger H. Kontakte (Darmstadt). 3:1987;8-11. (monoalkylation of amines).
For reviews see: (a) Smith P.E.S. The Chemistry of Open-Chain Organic Nitrogen Compounds. Vol. I:1965;W.A. Benjamin, New York, (b) Spiegelberger G. Herstellung von Aminen. Müller E. 4th ed. Houben-Weyl, Methoden der organischen Chemie. Vol. XI/1:1957;24 Georg Thieme, Stuttgart, (c) Theodoridis G. Tetrahedron. 56:2000;2339-2358. (N-protective groups) (d) Wurziger H. Kontakte (Darmstadt). 3:1987;8-11. (monoalkylation of amines).
For reviews see: (a). W.A. Benjamin, New York. Müller E. 4th ed. Georg Thieme, Stuttgart. (N-protective groups). (monoalkylation of amines)
For reviews see: (a) Smith P.E.S. The Chemistry of Open-Chain Organic Nitrogen Compounds. Vol. I:1965;W.A. Benjamin, New York, (b) Spiegelberger G. Herstellung von Aminen. Müller E. 4th ed. Houben-Weyl, Methoden der organischen Chemie. Vol. XI/1:1957;24 Georg Thieme, Stuttgart, (c) Theodoridis G. Tetrahedron. 56:2000;2339-2358. (N-protective groups) (d) Wurziger H. Kontakte (Darmstadt). 3:1987;8-11. (monoalkylation of amines).
A notable exception is the reaction of ethylenediamine with isopropyl bromide which gives only two readily separated products, N,N′ -diisopropylethylenediamine (57%) and N,N,N′ -tris-isopropylethylenediamine (8%). Denk, M. K.; Krause, M. J. Unpublished results.
Schneider (Ref. 4a) obtained N,N′-dimethylethylenediamine from N,N′-disulfonylethylenediamine in 15% yield. See also (a) Boon W.R. J. Chem. Soc. 1947;307-318 (b) Braun J., Heider K., Müller E. Chem. Ber. 51:1918;737-741 (c) Johnson T.B., Bailey G.C. J. Am. Chem. Soc. 38:1916;2135-2145.
Schneider (Ref. 4a) obtained N,N′-dimethylethylenediamine from N,N′-disulfonylethylenediamine in 15% yield. See also (a) Boon W.R. J. Chem. Soc. 1947;307-318 (b) Braun J., Heider K., Müller E. Chem. Ber. 51:1918;737-741 (c) Johnson T.B., Bailey G.C. J. Am. Chem. Soc. 38:1916;2135-2145.
Schneider (Ref. 4a) obtained N,N′-dimethylethylenediamine from N,N′-disulfonylethylenediamine in 15% yield. See also (a)
Schneider (Ref. 4a) obtained N,N′-dimethylethylenediamine from N,N′-disulfonylethylenediamine in 15% yield. See also (a) Boon W.R. J. Chem. Soc. 1947;307-318 (b) Braun J., Heider K., Müller E. Chem. Ber. 51:1918;737-741 (c) Johnson T.B., Bailey G.C. J. Am. Chem. Soc. 38:1916;2135-2145.
A runaway reaction occurred upon the addition of 5 mL of water to a mixture of isopropylamine (5 mol) with 1,2-dibromoethane (1 mol)
3 filtration as described in the Section 3. Commercially available N,N′-diphenylethylenediamine (Aldrich D2, 700-4N, mp 65-67°C) contains ca. 2% of N,N′-diphenylpiperazine. Previously reported melting points (a)
56
84984223961
3 filtration as described in the Section 3. Commercially available N,N′ -diphenylethylenediamine (Aldrich D2, 700-4N, mp 65-67°C) contains ca. 2% of N,N′-diphenylpiperazine. Previously reported melting points (a) Schönberg A. Chem. Ber. 116:1983;2068-2073. (65-67°C) (b) Schönberg A. Chem. Ber. 117:1984;3388-3399. (64-66°C).
3 filtration as described in the Section 3. Commercially available N,N′ -diphenylethylenediamine (Aldrich D2, 700-4N, mp 65-67°C) contains ca. 2% of N,N′-diphenylpiperazine. Previously reported melting points (a) Schönberg A. Chem. Ber. 116:1983;2068-2073. (65-67°C) (b) Schönberg A. Chem. Ber. 117:1984;3388-3399. (64-66°C).
Quarternary ammonium salts were suggested as other possible side products by one referee. While we have no evidence for their formation under the reaction conditions employed, their formation under more forcing conditions seems indeed likely
Quarternary ammonium salts were suggested as other possible side products by one referee. While we have no evidence for their formation under the reaction conditions employed, their formation under more forcing conditions seems indeed likely.
* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.