Platinum catalysed 3, 4-and 1, 4-diboration of α, β-unsaturated carbonyl compounds using bis-pinacolatodiboron

…, CJ Elsevier, X Baucherel, AAD Tulloch…

Index: Bell, Nathan J.; Cox, Andrew J.; Cameron, Neil R.; Evans, John S. O.; Marder, Todd B.; Duin, Marcel A.; Elsevier, Cornelis J.; Baucherel, Xavier; Tulloch, Arran A. D.; Tooze, Robert P. Chemical Communications, 2004 , # 16 p. 1854 - 1855

Full Text: HTML

Citation Number: 5

Abstract

Boronate esters and boronic acids are extremely useful in synthesis 1 and can also display biological activity. 2 It is not possible to introduce boronate groups at a position β- to a carbonyl using conventional hydroboration methods as the boron would avoid the electrophilic site. 3 In one of the earliest examples of metal catalysed hydroboration, 4 a nido-carborane anion was used as a source of B–H in the Rh(PPh 3 ) 2 + -catalysed 3,4-addition of this B–H bond to the C C bond in ...