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1,3,2-二氮磷杂环戊烷-4-酮类化合物的除草活性
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作者 骆焱平 朱朝华 +1 位作者 何良年 陆爱红 《现代农药》 CAS 2003年第4期10-11,44,共3页
运用油菜根伸长法和小杯法测定了1,3,2-二氮磷杂环戊烷-4-酮类化合物的除草活性,结果表明化合物Ⅰ对油菜和稗草的根茎抑制效果好,化合物Ⅱ对油菜根生长有一定促进作用。
关键词 1 3 2-二氮杂环戊烷-4-酮类化合物 除草活性 除草剂 油菜 稗草 农药
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含氮、磷四元不饱和杂环化合物的合成和表征
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作者 梁洪泽 王强 《有机化学》 SCIE CAS CSCD 北大核心 2006年第9期1303-1305,共3页
合成了含氮、磷四元不饱和化合物.反应可能是通过phosphinidene对P—C=N的1,3环加成反应过程进行的.
关键词 不饱和化合物 磷-杂环化合物 有机化合物
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Synthesis and Molecular Structure of 5, 5-Dimethyl-2- (4' -methoxy)phenyl-1, 3, 2- thiazaphospholidine-4-thione 2-sulfide
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作者 DENG Sheng-Loua LIU Dong-Zhia HUANG Jun-Minb CHEN Ru-Yub WENG Lin-Hongb LENG Xue-Bingb ( aSchool of Chemical Engineering, Tianjin University, Tianjin 300072, China) (bInstitute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China) 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2002年第1期46-50,共5页
A five-membered phosphoroheterocycle, 5, 5-dimethyl-2-(4 -methoxy)phenyl-1, 3, 2-thiazaphospholidine-4-thione 2-sulfide, has been prepared by the reaction of Lawessons reagent (LR) with -hydroxyl isobutyronitrile, and... A five-membered phosphoroheterocycle, 5, 5-dimethyl-2-(4 -methoxy)phenyl-1, 3, 2-thiazaphospholidine-4-thione 2-sulfide, has been prepared by the reaction of Lawessons reagent (LR) with -hydroxyl isobutyronitrile, and its crystal structure was determined by X-ray diffraction method. The title compound (C11H14NOPS3) is triclinic with space group P , a= 6.8418 (9), b= 10.5467 (1), c= 11.5670 (2)? = 114.851 (2),β= 100.291 (2),γ= 91.390 (3)? V= 740.7 (2) 3, Z= 2, Dc= 1.360 g/cm3, λ= 0.71073 ? μ(MoK?= 0.59 mm-1, F(000)= 316. The Structure was refined to R= 0.0476, wR= 0.1272 for 2549 unique reflections with I >2σ(I). It contains a phenyl ring and a 5-membered phosphoroheterocycle with the dihedral angle of 87.06 (9)? The five atoms (P (1), N (1), C (1), C (2) and S (2)) of the heterocycle are nearly coplanar. In view of the unit cell it can be concluded that there exists an intermolecular hydrogen bond in the form of Sa┈HN (a: X, Y+1,Z+1). The existence of dpлbond between P (1) and N (1) was found as well as unsaturated property of N (1)C (1) moiety. 展开更多
关键词 SYNTHESIS five-membered phosphoroheterocycle intermolecular hydrogen bond d-pлbond unsaturated property.
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