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1	Author	ShinpeiO. Hkia, Hideomi Takahashib, Nobuhiro Kuboyamac, Kazuya Koizumic, Hitoshi Kohnob, JackJ S Van Rensend, KoW. Akabayashib, Peter Bögera	Requires cookie*
	Title	Photosynthetic Electron Transport Inhibition by Pyrimidines and Pyridines Substituted with Benzylamino, Methyl and Trifluoromethyl Groups
	Abstract	The decrease of the num ber of ring nitrogen atoms of 2-benzylamino-4-methyl-6-trifluoro-methyl-l,3,5-triazines on herbicidal activity and inhibition of photosynthetic electron trans port (PET) was assayed using thylakoids from Spinacia oleracea or atrazine-resistant Cheno podium album. Three 2-benzylamino-4-methyl-6-trifluoromethyl-l,3,5-triazines, nine pyrimi dines with a benzylamino-, methyl-and trifluoromethyl-group, 2-benzylamino-6-methyl-4-trifluoromethyl-pyridine and N-benzyl-S-methyl-S-trifluoromethylaniline were synthesized and assayed. 2-(4-Bromobenzylamino)-4-methyl-6-trifluoromethylpyrimidine exhibited the highest PET inhibitory activity against Spinacia oleracea thylakoids of all compounds tested. The 2-benzylaminopyrimidines and 2-methylpyrimidines having a 4-halobenzylamino group exhibited higher PET inhibition than atrazine and 2-trifluoromethylpyrimidines against Spi nacia oleracea thylakoids. These PET inhibitory active compounds also exhibited a strong and similar inhibition both against atrazine-resistant Chenopodium album thylakoids as well as against thylakoids from wild-type Chenopodium. The herbicidal activity of 4-(4-bromoben-zylamino)-2-methyl-6-trifluoromethylpyrimidine was equivalent to that of known herbicides like simetryne, simazine or atrazine.
	Reference	Z. Naturforsch. 56c, 203—210 (2001); received January 22 2001
	Published	2001
	Keywords	PET Inhibitory Activity, Atrazine-Resistant Chenopodium album, 4-Benzylamino-2-methyl-6-trifluoromethylpyrimidines
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	TEI-XML for	default:Reihe_C/56/ZNC-2001-56c-0203.pdf
	Identifier	ZNC-2001-56c-0203
	Volume	56