Heck reactions of aryl bromides with alk-1-en-3-ol derivatives catalysed by a tetraphosphine/palladium complex
摘要:
cis,cis,cis-1,2,3,4-Tetrikis(diplienylphosphinomethyl)cyclopentane/[PdCl(C3H5)](2) efficiently catalyses the Heck reaction of alk-1-en-3-ol with a variety of aryl bromides. In the presence of hex-1-en-3-ol or oct-1-en-3-ol, the beta-arylated carbonyl compounds were selectively obtained. Linalool and 2-methylbut-3-en-2-ol led to the corresponding 1-arylalk-1-en-3-ol derivatives. Turnover numbers up to 69,000 can be obtained for this reaction. A minor electronic effect of the substituents of the aryl bromide was observed. Similar reaction rates were observed in the presence of activated aryl bromides Such as bromoacetophenone and deactivated aryl bromides such as bromoanisole. (C) 2004 Elsevier Ltd. All rights reserved.
COMPOSITIONS AND METHODS FOR TREATING CARDIOVASCULAR DISEASE
申请人:Genentech, Inc.
公开号:US20190177366A1
公开(公告)日:2019-06-13
The invention provides PCSK9 inhibitors, compositions comprising the PCSK9 inhibitors, and methods of identifying and using the PCSK9 inhibitors.
Heck reactions of aryl bromides with alk-1-en-3-ol derivatives catalysed by a tetraphosphine/palladium complex
作者:Florian Berthiol、Henri Doucet、Maurice Santelli
DOI:10.1016/j.tetlet.2004.05.117
日期:2004.7
cis,cis,cis-1,2,3,4-Tetrikis(diplienylphosphinomethyl)cyclopentane/[PdCl(C3H5)](2) efficiently catalyses the Heck reaction of alk-1-en-3-ol with a variety of aryl bromides. In the presence of hex-1-en-3-ol or oct-1-en-3-ol, the beta-arylated carbonyl compounds were selectively obtained. Linalool and 2-methylbut-3-en-2-ol led to the corresponding 1-arylalk-1-en-3-ol derivatives. Turnover numbers up to 69,000 can be obtained for this reaction. A minor electronic effect of the substituents of the aryl bromide was observed. Similar reaction rates were observed in the presence of activated aryl bromides Such as bromoacetophenone and deactivated aryl bromides such as bromoanisole. (C) 2004 Elsevier Ltd. All rights reserved.