4-ethyl-3-(substituted...

Details 4-ethyl-3-(substituted... 4-ethyl-3-(substituted...

C - Chemistry, Metallurgy

07

D

260/324, 71/8.5

C07D 207/26 (2006.01) A01N 43/36 (2006.01) C07D 207/27 (2006.01)

Patent

CA 2012173

- 71 - ABSTRACT 4-Ethyl-3-(phenyl)-1-(3-trifluoromethylphenyl)-2- pyrrolidinones and corresponding compounds bearing a p- substituent on the 1-position phenyl group and/or a sub- stituent on the 3-position phenyl group exhibit selective herbicidal activities against various weeds which cause problems in rice or upland fields, even at extremely low ap- plication rates. They can be prepared by reductive dehalogenation of a corresponding .alpha.-haloethyl substituted pyrrolidinone or reductive cyclization of a corresponding N- 2-butenyl-N-(substituted phenyl)-haloacetyl-3-trifluoro- methylaniline.

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