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Synthesis and Crystal Structure of α-(3-Phenylureido)-α-(2,4-Dichlorophenyl) Methyl Phenylphosphinic Acid
作者姓名:ZHOU Jia  CHEN Ru-Yu
作者单位:ZHOU Jia; CHEN Ru-Yu(Institute of Elemento-Organic Chemistry,National Key Laboratory ofElemento-Organic Chemistry,Nankai University,Tainjin 300071)WANG Hong-Gen ;YAO Xin-Kan(Central Laboratory,Nankai University,Tianjin 300071)
摘    要:1INThODUCT1ONInaprevi0uspaPer"',wereP0rtedthesyntheses0fsome1,3,4-diazaphospho-lidin-2-thione-4-oxidesandtheirhighselectiveherbicidalactivity.Althoughtherewereseveralreportsaboutthedesulphurisationofsomestraightchainthioureaderiva-tivest2'31,uptonow,thedesulphurisationreactionofcyclicthioureaderivativesutiliz-ingAgNO,-H,Osystemhasnotbeenstudied.InthispaPer,thedesulphurisation0fcis-3,4-diphenyl-5-(2,4-dichlorophenyl)-1,3,4-diazaphOSpholidin-2-thione-4-oasthecyclicsubstrateisrep0rtedfort…


Synthesis and Crystal Structure of α-(3-Phenylureido)-α-(2, 4-Dichlorophenyl) Methyl Phenylphosphinic Acid
ZHOU Jia, CHEN Ru-Yu.Synthesis and Crystal Structure of α-(3-Phenylureido)-α-(2, 4-Dichlorophenyl) Methyl Phenylphosphinic Acid[J].Chinese Journal of Structural Chemistry,1997(3).
Authors:ZHOU Jia  CHEN Ru-Yu
Abstract:The crystal structure of a (3-phenylureido)-a (2, 4-dichlorophenyl)methyl phenylphosphinic acid, C20H17Cl2N2O3P, Mr= 435. 25,which was obtained bydesulphurisation of cis-3, 4-dipheny1-5- (2, 4-dichlorophenyl ) -1, 3, 4-diazaphospholidin2-thione-4-oxide utilizing Ag -H2O system in a yield of 89%, is reported. It crystallizes in orthorhombic space group Pca21 with a= 11. 286(2), b= 20. 601 (4) f c=8. 695(2)A, V= 2021 (1) A3, Z= 4, D.= 1. 430 g/cm3, p=4. 21 cm-1, F(000) =896.The final R factor is 0. 040 and Rw is 0. 045 for 946 unique observed reflectionsI>3a(I)]. The result of X-ray analysis indicates that the molecules in the crystal are linkedtogether by the O(3 ) ...H (2d) - N (2d ) intermolecular hydrogen-bondings.
Keywords:crystal structure  desulphurisation reaction  1  3  4-diazaphospholidin-2-thione  phosphinic acid derivative
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