1,5-Diaminoheptanol-1,6,

Details 1,5-Diaminoheptanol-1,6, 1,5-Diaminoheptanol-1,6,

1988-08-02

1990-04-17

Hines, Robert V.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C 9104

Patent

active

049182358

ABSTRACT:
The present invention is directed to a new chemical compound, 1,5-diaminoheptanol-6, which corresponds to the formula ##STR1## The present invention is additionally directed to a process for the preparation of 1,5-diaminoheptanol-6 by reacting L-lysine in its free form and/or in the form of its HCl salt, with acetic acid anhydride in the presence of a tertiary organic amino base and with the addition of a 4-aminopyridine derivative, hydrogenating the resulting 1,5-bisacetaminohepthanone-6 to 1,5-bisacetaminoheptanol-6, forming a salt of 1,5-diaminoheptanol-6 by treating 1,5-bisacetaminoheptanone-6 with a mineral acid and isolating the free amine by treating the 1,5-diaminoheptanol-6 salt of a mineral acid with a strong base.
Finally, the present invention is directed to the use of 1,5-diaminoheptanol-6 as at least a portion of the chain lengthening agent for the preparation of polyurethane plastics by the isocyanate polyaddition process.

REFERENCES:
patent: 2931804 (1980-04-01), Spivack
patent: 4035213 (1977-07-01), Thoma et al.
patent: 4523003 (1985-06-01), Bezwada
patent: 4613527 (1986-09-01), Potter et al.
Abstract of German 3,425,814.

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