- HERBICIDAL COMPOUNDS
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The invention relates to pyrrolone compounds of the formula (I) wherein X, R1, R2, R3, Ra, Rc and Rd are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control plant growth.
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Page/Page column 43
(2015/03/13)
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- The Chichibabin amination of 4-phenyl- and 4-tert-butyl-pyrimidine
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During a study on the amination of 4-phenylpyrimidine in potassium amide/liquid ammonia it was found that the extent to which the SN(ANRORC) mechanism operates in the amination largely depends upon whether an ammonium salt is used in quenching the reaction.The composition of the ?-adduct mixture, the structure of the open-chain intermediates, the inhibition of the SN(ANRORC) mechanism and the course of the amination in apolar solvents have been investigated.In addition, it has been found that, in the amination of 4-tert-butylpyrimidine, the SN(ANRORC) mechanism occurs to only a very limited extent.
- Breuker, J.,Plas, H. C. van der
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p. 367 - 372
(2007/10/02)
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