128184-34-9Relevant academic research and scientific papers
Method for preparing olefine aldehyde by catalyzing terminal alkyne or terminal conjugated eneyne and diphosphine ligand used in method
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Paragraph 0190-0194, (2021/05/29)
The invention discloses a method for preparing olefine aldehyde by catalyzing terminal alkyne or terminal conjugated eneyne and a diphosphine ligand used in the method. According to the invention, indole-substituted phosphoramidite diphosphine ligand which is stable in air and insensitive to light is synthesized by utilizing a continuous one-pot method, and the indole-substituted phosphoramidite diphosphine ligand and a rhodium catalyst are used for jointly catalyzing to successfully achieve a hydroformylation reaction of aromatic terminal alkyne and terminal conjugated eneyne under the condition of synthesis gas for the first time, so that an olefine aldehyde structure compound can be rapidly and massively prepared, and particularly, a polyolefine aldehyde structure compound which is more difficult to synthesize in the prior art can be easily prepared and synthesized, and a novel method is provided for synthesis and modification of drug molecules, intermediates and chemical products.
A convenient synthetic entry into aldehydes with extended conjugation
Friedli, Andrienne C.,Yang, Edward,Marder, Seth R.
, p. 2717 - 2730 (2007/10/03)
Variable-length donor-acceptor polyenes 1-18 were synthesized. In the key step, a polyenal was appended to an aromatic donor through nucleophilic attack of an organolithium reagent on a vinylogous amide. Yields of aldehydes and dialdehydes in the one-pot process ranged from 12-64% and depended upon number of repeat units (n=1-3) in the polyene chain.
