Synthesis and Platinum-Catalyzed Reactions of Benzobis(disilacyclobutene).
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Accession number;99A0308695
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| Title;Synthesis and Platinum-Catalyzed Reactions of Benzobis(disilacyclobutene). |
| Author;
NAKA A
(Kurashiki Univ. Sci. And The Arts, Okayama)
YOSHIZAWA K
(Kyoto Univ., Kyoto)
KANG S
(Kyoto Univ., Kyoto)
YAMABE T
(Kyoto Univ., Kyoto)
ISHIKAWA M
(Kurashiki Univ. Sci. And The Arts, Okayama)
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Journal Title;Abstr Symp Organomet Chem Jpn
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Journal Code:L0853A
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ISSN:
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VOL.45th;NO.;PAGE.4-5(1998)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;English |
| Abstract;Benzo[1,2:4,5]bis(1,1,2,2-tetraethyl-1,2-disilacyclobut-3-ene)(1) was synthesized by the reaction of 1,2,4,5-tetrabromobenzene with magnesium in the presence of diethylfluorosilane in THF. The reaction of 1 with diphenylacetylene in the presence of a catalytic amount of (.ETA.2-ethylene)bis(triphenylphosphine)platinum(O) in refluxing benzene gave a 1:2-adduct, benzo[1,2:4,5]bis(1,1,4,4-tetraethyl-2,3-diphenyl-1,4-disilacyclohexa-2,5-diene) in 91% yield. Similar platinum(O)-catalyzed reaction of 1 with 3-hexyne and acetylene in benzene afforded the respective 1:2-adducts, benzo[1,2:4,5]bis(disilacyclohexadine) derivatives in excellent yields. (author abst.) |
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