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Pd(0)-catalysed formation of diarylated dienes from propargyl carbonates and organoboron and organotin(IV) reagents

DOI: 10.1016/S0040-4020(99)00831-5

Source and publish data:

Tetrahedron p. 13463 - 13470 (1999)

Update date:2022-08-05

Topics:

Authors:

Boehmer, JuttaBoehmer, Jutta

Grigg, RonaldGrigg, Ronald

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Article abstract of DOI:10.1016/S0040-4020(99)00831-5

The 1,1-dimethylbutyne-1,4-diol derivative 1 reacts with 2 mol. equiv. of organoboron (NaBPh4 arylboronic acids) and organotin(IV) reagents to give 1,1-dimethyl-2,3-disubstituted butadienes in good yield via allenylpalladium(II) and vinylidene-π-allylpalladium(II) intermediates. Unsubstituted esters 6 and butyne dicarbonate 7 lead to symmetrical dienes 8.

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Full text of DOI:10.1016/S0040-4020(99)00831-5

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