CYCLOMETALLATED COMPOUNDS .4. CYCLOPALLADATION OF PHENYLPYRIMIDINES AND X-RAY STRUCTURE OF A DOUBLY CYCLOPALLADATED DERIVATIVE OF 4,6-DIPHENYLPYRIMIDINE

被引:34
作者
CAYGILL, GB [1 ]
HARTSHORN, RM [1 ]
STEEL, PJ [1 ]
机构
[1] UNIV CANTERBURY,DEPT CHEM,CHRISTCHURCH 1,NEW ZEALAND
关键词
D O I
10.1016/0022-328X(90)80223-M
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Seven phenylpyrimidines have been cyclopalladated with lithium tetrachloropalladate and the products characterised by 1H and 13C NMR studies of their acetylacetonate complexes. 6-Methyl-2,4-diphenylpyrimidine and 2,4,6-triphenylpyrimidine undergo preferential metallation of the 2-phenyl ring. 4-(para-Nitrophenyl)-6-phenylpyrimidine is selectively monopalladated in the unsubstituted phenyl ring. 4,6-Diphenylpyrimidine has been doubly cyclopalladated, and an X-ray crystal structure of its acetylacetonate complex refined to an R value of 0.053. © 1990.
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页码:455 / 469
页数:15
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