Structure of cis,cis-4,6-diphenyl-2-(2-propenyl)-1,3-dioxa-2-phosphorinane 2-oxide.
Structure of cis,cis-4,6-diphenyl-2-(2-propenyl)-1,3-dioxa-2-phosphorinane 2-oxide.
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顺式,顺式-4,6-二苯基-2-(2-丙烯基)-1,3-二氧杂-2-膦烷2-氧化物的结构。
DOI：
10.1107/s0108270192002051
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Robinson,PD
中科院分区：
文献类型：
--
作者：
Hua,DH;Roche,D;Bharathi,SN;Wu,X;Robinson,PD
C18HI903P, Mr= 314.32, monoclinic, P2Jn, a= 5.726 (6), b= 14.234 (7), c= 20.08 (1)/~, fl= 92.54 (7), V= 1635 (4) A3, Z= 4, Dx= 1.277 gcm-3, A (Mo Ka)= 0.71069/~,/z= 1.71 cm-1, F (000)= 664, T= 296 K, R= 0.042, 1813 unique observed reflections. The X-ray structure determination of the title compound shows that the dioxaphosphorinane ring has a chair conformation in which the phosphoryl O atom~) is equator-ial, which explains the absence of substantial NMR deshielding by its~ group on H (4) and H (6), which are axial.Experimental. The title compound (I) was prepared from the reaction of meso-(R, S)-l, 3-diphenyl-l, 3-propanediol with 2-propenylphosphonyl dichloride (Kinnear & Perren, 1952) in the presence of 2.2 equivalents of triethylamine in methylene chloride (52% yield). A mixture of 1.28: 1 of (I) and its isomer, transa'a, cisa, 6-4, 6-diphenyl-2-(2-propenyl)-l, 3-
