3307. Diphenamid

Nomenclature

CAS number: 957-51-7
N,N-Dimethyl-α-phenylbenzeneacetamide; N,N-dimethyl-2,2-diphenylacetamide; N,N-dimethyl-α,α-diphenyl acetamide; 2,2-diphenyl-N,N-dimethylacetamide; L-34314; Dymid (Lilly); Enide (Tuco).
C16H17NO; mol wt 239.31.
C 80.30%, H 7.16%, N 5.85%, O 6.69%.

Description and references

Selective pre-emergence herbicide. Prepn: Cheney et al., J. Org. Chem. 17, 770 (1952). Toxicity study: G. W. Bailey, J. L. White, Residue Rev. 10, 97 (1965).

Chemical structure

Properties

Crystals from ethyl acetate, mp 134.5-135.5°. Soluble in water, acetone, dimethylformamide, xylene, phenyl Cellosolve. LD50 orally in rats: 700 mg/kg (Bailey, White).

Use

Herbicide.