Exploitation of an unprecedented silica-promoted acetylene-allene rearrangement for the preparation of C,C-diacetylenic phosphaalkenes
Exploitation of an unprecedented silica-promoted acetylene-allene rearrangement for the preparation of C,C-diacetylenic phosphaalkenes
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DOI：
10.1039/b916640h
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发表时间：
2009-01-01
影响因子：
4.9
通讯作者：
Ott, Sascha
中科院分区：
文献类型：
--
作者：
Geng, Xue-Li;Ott, Sascha
C，C-二乙炔磷烯已由1-氯-3-乙炔基-1，2-联烯获得，该烯可通过二氧化硅促进的3-氯戊-1，4-二炔重排获得;磷二乙炔-乙烯的氧化乙炔均偶联首次被描述，并提供了二聚的交叉共轭产物，与全碳基参考化合物相比，其HOMO-LUMO间隙大幅降低。
C,C-Diacetylenic phosphaalkenes have been obtained from a 1-chloro-3-ethynyl-1,2-allene which becomes accessible from a silica-promoted rearrangement of a 3-chloropenta-1,4-diyne; oxidative acetylene homo-coupling of the phosphadiethynyl-ethene is described for the first time and affords a dimeric, cross-conjugated product which features a largely decreased HOMO-LUMO gap compared to all-carbon-based reference compounds.