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Crystal Structure of Ethoxyethyl 3-(2-Chloro-5-pyridyl methylamino)-2-cyano-4-methylpent-2-enoate

Chinese Journal of Structural Chemistry 2002年第3期21卷 241-244页

作者：曹焕岩黄润秋等南开大学 State Key Laboratory of Elemento-Organic Chemistry 300071

The crystal of the title compound C17H22ClN3O3(Mr = 351.83) was prepared and its structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P21/n with the following crystallographic parameters: a = 14.7641(1), b = 9.0050(7), c = 15.4874(1) ? =116.9590(1)? V = 1835.3(3) ?, Z = 4, Dx = 1.273 g/cm3, (MoK? = 0.227mm-1, F(000) = 744, the final R = 0.0516 and wR = 0.1594 for 2168 observed reflections. The X-ray data confirmed the z-sterochemistry of active cyanoacrylates and the presence of a planar core stablized by an intramolecular hydrogen bond between the ester carbonyl oxygen and the pyridyl methylamino hydrogen atom.

关键词： synthesis crystal structure herbicides psii inhibitor cyanoacrylate

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Synthesis and Crystal Structure of Ethoxyethyl 3-(2-chloro-5-pyridyl methylamino)-2-cyano-3-methylthio acrylate

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Chinese Journal of Structural Chemistry 1999年第4期18卷 46-49页

作者： LIU Xin\ HUANG RunQiu\ LI ZaiGuo\= (Research Institute and State Key Laboratory of ElementoOrganic ChemistryNankai University, Tianjin, 300071) WANG HongGenYAO XinKan (Central Laboratory, Nankai University, Tianjin, 300071) 南开大学元素有机化学所元素有机化学国家重点实验室天津南开大学中心实验室天津

１ＩＮＴＲＯＤＵＣＴＩＯＮＡｍｏｎｇｔｈｅｗｉｄｅｖａｒｉｅｔｙｏｆｐｈｏｔｏｓｙｓｔｅｍＩ（ＰＳＩ）ｐｈｏｔｏｓｙｎｔｈｅｔｉｃｅｌｅｃｔｒｏｎｔｒａｎｓｐｏｒｔｉｎｈｉｂｉｔｏｒｓ，ｔｈｅｈｉｇｈｌｙｐｏｔｅｎ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＡｍｏｎｇｔｈｅｗｉｄｅｖａｒｉｅｔｙｏｆｐｈｏｔｏｓｙｓｔｅｍＩ（ＰＳＩ）ｐｈｏｔｏｓｙｎｔｈｅｔｉｃｅｌｅｃｔｒｏｎｔｒａｎｓｐｏｒｔｉｎｈｉｂｉｔｏｒｓ，ｔｈｅｈｉｇｈｌｙｐｏｔｅｎｔｃｙａｎｏａｃｒｙｌａｔｅＰＳＩ...

关键词： crystal structure psii inhibitor cyano acrylate containing pyridylmethylamino

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IN VIVO LOCATION OF ACTION SITES OF TENUAZONIC ACID IN THE PHOTOSYNTHETIC APPARATUS BY CHLOROPHYLL A FLUORESCENCE KINETICS OJIP

IN VIVO LOCATION OF ACTION SITES OF TENUAZONIC ACID IN THE P...

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第九届全国杂草科学大会

作者： Shiguo Chen Chunyan Yin Sheng Qiang Weed Research Laboratory Nanjing Agricultural University

Tenuazonic acid(TeA),a phytotoxin produced by the fungus Alternaria alternata isolated from diseased Crofton weed(Eupatoriun adenophorum),exhibits a strong inhibition in photosynthesis,especially photosystem II(psii) *** vivo the chlorophyll fluorescence induction transient of host plant and in vitro fluorescence transient of other five higher plants show that TeA acts several sites in photosynthesis ***,as the classic psii inhibitors,the most important action site of TeA is that it interrupts electron transport beyond Q on the acceptor side of psii due to binding to the ***,TeA leads to severe inactivation of psii reaction centers(RCs).On the other hand,TeA has no affect on the antenna pigments,the energy transfer from antenna pigment molecules to RCs,and the oxygen-evolving complex(OEC) at the donor side of ***,it’s different from the known classical psii inhibitors that the dominant influence of TeA is not on the primary photochemical reaction but the biochemical reaction after *** the basis of the competition experiments with[C]atrazine,it’s further confirmed that TeA does not share with atrazine the same binding environment despite their common action target:the ***,TeA causes inactivation of the FNR system and therefore the reduction of NADP at PSI electron acceptor *** actions distinguish TeA from the classic photosynthesis inhibitors.

关键词： tenuazonic acid Chl a fluorescence induction transients JIP-test psii inhibitor reaction center

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