Английская Википедия:4-Ethynylbenzaldehyde
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4-Ethynylbenzaldehyde, or p-ethynylbenzaldehyde, is an organic compound with the formula HC2C6H4COH.[1]
Preparation
4-Ethynylbenzaldehyde may be prepared by the Sonogashira coupling of 4-bromobenzaldehyde with trimethylsilylacetylene to form 4-((trimethylsilyl)ethynyl)benzaldehyde, followed by removal of the trimethylsilyl group with base to form 4-ethynylbenzaldehyde.[2]
Reactions
The ethynyl functionality of 4-ethynylbenzaldehyde may undergo a Sonogashira coupling with another molecule of 4-bromobenzaldehyde to form the symmetrical dialdehyde 4,4'-(ethyne-1,2-diyl)dibenzaldehyde.[2]
See also
References
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