سداسي ميثيلين رباعي الأمين (Arabic Wikipedia)

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Butlerow A (1859). "Ueber einige Derivate des Jodmethylens" [On some derivatives of methylene iodide]. Ann. Chem. Pharm. (بالألمانية). 111 (2): 242–252. DOI:10.1002/jlac.18591110219. Archived from the original on 2023-01-16. In this article, Butlerov discovered formaldehyde, which he called "dioxymethylen" (methylene dioxide) [page 247] because his empirical formula for it was incorrect (C₄H₄O₄). On pages 249–250, he describes treating formaldehyde with ammonia gas, creating hexamine.
Butlerow A (1860). "Ueber ein neues Methylenderivat" [On a new methylene derivative]. Ann. Chem. Pharm. (بالألمانية). 115 (3): 322–327. DOI:10.1002/jlac.18601150325. Archived from the original on 2023-01-16.

Cooney، A. P.؛ Crampton, M. R.؛ Golding, P. (1986). "The acid-base behaviour of hexamine and its N-acetyl derivatives". J. Chem. Soc., Perkin Trans. 2 ع. 6: 835. DOI:10.1039/P29860000835.
Butlerow A (1859). "Ueber einige Derivate des Jodmethylens" [On some derivatives of methylene iodide]. Ann. Chem. Pharm. (بالألمانية). 111 (2): 242–252. DOI:10.1002/jlac.18591110219. Archived from the original on 2023-01-16. In this article, Butlerov discovered formaldehyde, which he called "dioxymethylen" (methylene dioxide) [page 247] because his empirical formula for it was incorrect (C₄H₄O₄). On pages 249–250, he describes treating formaldehyde with ammonia gas, creating hexamine.
Butlerow A (1860). "Ueber ein neues Methylenderivat" [On a new methylene derivative]. Ann. Chem. Pharm. (بالألمانية). 115 (3): 322–327. DOI:10.1002/jlac.18601150325. Archived from the original on 2023-01-16.
Eller K، Henkes E، Rossbacher R، Höke H (2000). "Amines, Aliphatic". Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH. DOI:10.1002/14356007.a02_001. ISBN:9783527306732.

Butlerow A (1859). "Ueber einige Derivate des Jodmethylens" [On some derivatives of methylene iodide]. Ann. Chem. Pharm. (بالألمانية). 111 (2): 242–252. DOI:10.1002/jlac.18591110219. Archived from the original on 2023-01-16. In this article, Butlerov discovered formaldehyde, which he called "dioxymethylen" (methylene dioxide) [page 247] because his empirical formula for it was incorrect (C₄H₄O₄). On pages 249–250, he describes treating formaldehyde with ammonia gas, creating hexamine.
Butlerow A (1860). "Ueber ein neues Methylenderivat" [On a new methylene derivative]. Ann. Chem. Pharm. (بالألمانية). 115 (3): 322–327. DOI:10.1002/jlac.18601150325. Archived from the original on 2023-01-16.