13162-46-4Relevant articles and documents
Method for preparing olefine aldehyde by catalyzing terminal alkyne or terminal conjugated eneyne and diphosphine ligand used in method
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Paragraph 0183-0187, (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 Novel and General Route to 1-Iodo-2,4(E,E)-dienes via Pentadienyl Dithiocarbamate
Hayashi, Toshio,Sasaoka, Kazuo,Oishi, Takeshi
, p. 1362 - 1363 (2007/10/02)
The title compounds were prepared from pentadienyl dithiocarbamate via S-methylathion and by use of the iodide an unsymmetric, all-trans-conjugated pentaene was synthesized.
