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Volumn 9, Issue 2, 2007, Pages 363-366

Two palladium-catalyzed domino reactions from one set of substrates/reagents: Efficient synthesis of substituted indenes and cis-stilbenoid hydrocarbons from the same internal alkynes and hindered Grignard reagents

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID DERIVATIVE; ALKYNE; DYES, REAGENTS, INDICATORS, MARKERS AND BUFFERS; INDENE DERIVATIVE; ORGANOMETALLIC COMPOUND; PALLADIUM; STILBENE DERIVATIVE;

EID: 33846580541     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol062885a     Document Type: Article
Times cited : (32)

References (60)
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    • Pd(PPh3)2Cl2-catalyzed reactions of trans-1,2-dibromoalkenes with Grignard reagents in refluxing THF were reported to give cis-substituted stilbenes in excellent yields (ref 12a, In our hands, we found Pd(PPh3)2Cl2-catalyzed reaction of trans-1,2-dibromo-1,2-diphenylethene with pentamethylphenylmagnesium bromide indeed gave cis-substituted stilbene in 86% yield. However, we also found Pd(PPh3)2Cl 2-catalyzed reactions of trans-1,2-dibromo-1,2-diphenylethene or trans-3,4-dibromo-3-hexene with 2-mesitylmagnesium bromide or 2,6-dimethylphenylmagnesium bromide in refluxing THF gave significant amounts of substituted indenes > 18, When the reaction temperature was 60°C, substituted indenes were obtained in 70-98% yields
    • 2-catalyzed reactions of trans-1,2-dibromo-1,2-diphenylethene or trans-3,4-dibromo-3-hexene with 2-mesitylmagnesium bromide or 2,6-dimethylphenylmagnesium bromide in refluxing THF gave significant amounts of substituted indenes (> 18%). When the reaction temperature was 60°C, substituted indenes were obtained in 70-98% yields.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.