3-Aminocarbonyl-substituted benzoylcyclohexanediones and their use as herbicides
申请人:UENO Chieko
公开号:US20110207605A1
公开(公告)日:2011-08-25
What is described are 3-aminocarbonyl-substituted benzoylcyclohexanediones of the formula (I) as herbicides.
In this formula (I), R
1
to R
5
are radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen. X is alkylene.
3-aminocarbonyl-substituted benzoylcyclohexanediones and their use as herbicides
申请人:Ueno Chieko
公开号:US08557741B2
公开(公告)日:2013-10-15
What is described are 3-aminocarbonyl-substituted benzoylcyclohexanediones of the formula (I) as herbicides.
In this formula (I), R1 to R5 are radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen. X is alkylene.
Reaction of 2-alkyl-4-enamides 2, 9-15 with NIS and aqueous sodium bicarbonate results in the diastereoselective formation of the corresponding iodohydrins 3, 16-22 with essentially no iodolactone by-product. This methodology has been successfully employed for the synthesis of the epoxide intermediate 4 of the orally active Merck HIV-I protease inhibitor L-735,524.
3-AMINOCARBONYL SUBSTITUIERTE BENZOYLCYCLOHEXANDIONE UND IHRE VERWENDUNG ALS HERBIZIDE