Title: Pyran-2,4-dione derivatives

Abstract: A compound of the formula ##SPC1## Wherein R.sub.1 and R.sub.2 are alkyl having six or less carbon atoms, R.sub.3 is selected from the group consisting of alkyl having six or less carbon atoms and alkenyl having six or less carbon atoms, with the proviso that R.sub.1 and R.sub.2 don't represent simultaneously methyl group; Are useful as selective herbicide.

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Inventors: Fujino, Akiharu (Zushi, JA)
Iwataki, Isao (Odawara, JA)
Hirono, Yoshihiko (Hiratsuka, JA)

Application Number: 526746
Filing Date: 1974-11-25
Publication_date: 1976-08-10
Assignee: Nippon Soda Company Ltd. (Tokyo, JA)
Primary Class(es): 504/292 204/157.69, 549/292, 549/417
Other Classes:
US Patent Ref:
Other Refs: 7,305,083

Oct, 1973	NL

Primary Examiner: Myers, Jane S.
Assistant Examiner:
Attorney: Oujevolk; George B.