N,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acids

Details N,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acids N,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acids

1975-11-11

1978-01-17

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71 1, 26029J, 2604299, 260435R, 2604381, 2604385R, 260439R, 260465D, 260465E, 26050111, 26050112, 260507R, C07C101447, C07C14367

Patent

active

040692493

ABSTRACT:
A novel chelating agent having the formula ##STR1## in whichA. EACH OF X.sub.1, X.sub.2, X.sub.3, and X.sub.4 is a member selected from the group consisting of (i) hydrogen; (ii) an alkyl group having 1-4 carbon atoms; (iii) --CN; (iv) --So.sub.3 M.sub.1 ; (v) --COOM.sub.1 ; (vi) --OM.sub.3 ; (vii) --NO.sub.2 ; (viii) --OH; and (ix) ##STR2## in which each of R.sub.1 and R.sub.2 is an alkyl group having 1-4 carbon atoms;

REFERENCES:
patent: RE23904 (1954-12-01), Bersworth
patent: 2824128 (1958-02-01), Dexter
patent: 2967196 (1961-01-01), Kroll et al.
patent: 3005848 (1961-10-01), Knell et al.
patent: 3632637 (1972-01-01), Martell
patent: 3780099 (1973-12-01), Scanlon et al.

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