There are disclosed novel 2,6-substituted-3-pyridinecarboxylic acids, esters, and salts useful as herbicides, and as intermediates which provide herbicides.
Herbicidal (2 or 6)-fluoroalkyl-4-amino pyridine derivatives
申请人:Monsanto Company
公开号:US04698093A1
公开(公告)日:1987-10-06
Disclosed herein are 3,5-pyridinedicarboxylic acid derivatives having heteroatom substitution at the 4 position which are useful as herbicides and herbicide precursors.
Reaction of 1,3‐Bis(trimethylsilyloxy)‐1,3‐butadienes with 2,4,6‐Tris(trifluoromethyl)‐1,3,5‐triazine: Planning and Serendipity
作者:Viktor O. Iaroshenko、Alina Bunescu、Anke Spannenberg、Peter Langer
DOI:10.1002/chem.201100379
日期:2011.6.20
Tri and you will succeed! A new type of formal [3+3] cyclization reaction of 2,4,6‐tris(trifluoromethyl)‐1,3,5‐triazine with 1,3‐bis(trimethylsilyloxy)‐1,3‐butadienes has been discovered that provides a convenient approach to functionalized 2,6‐bis(trifluoromethyl)‐1,4‐dihydro‐4‐oxopyridones (see scheme). The mechanism was studied by the isolation of an unusual tricyclic intermediate.
Certain 3,5-pyridine dicarboxylates, their thio analogues having
申请人:Monsanto Company
公开号:US04921530A1
公开(公告)日:1990-05-01
Disclosed herein are 3,5-pyridinedicarboxylic acid derivatives having substituted thio, sulfinyl or sulfonyl substitution at the 4 position which are useful as herbicides and herbicide precursors.