| 摘要 |
The invention relates to novel oxa-bicyclo[2,2,1]heptene derivatives of the formula <IMAGE> in which R represents hydrogen or optionally substituted aralkyl, R<1> represents hydrogen, alkyl, optionally substituted aralkyl or the radical -CO-R<4> where R<4> represents alkyl or optionally substituted phenyl or the radical -NH-R<5> where R<5> represents alkyl or optionally substituted phenyl and R<2> and R<3> are identical or different and represent alkyl, a plurality of processes for their preparation, and their use as herbicides, and novel intermediates. |
