22311-25-7Relevant articles and documents
(η6-[7]Heliphene)tricarbonylchromium via an Optimized Preparation of [7]Heliphene
Holmes, Daniel,Lee, Sang Yeul,Lotz, Sabine D.,Nguyen, Son C.,Schaller, Gaston R.,Schmidt-Radde, Rachel H.,Vollhardt, K. Peter C.
, p. 2038 - 2054 (2015/07/15)
Optimized procedures to [7]heliphene are described that allowed the synthesis of (η6-[7]heliphene)tricarbonylchromium and a preliminary exploration of its chemical behavior. DFT calculations provide structural and energetic information on this complex and its haptomeric isomers. Attempts to prepare the corresponding ([7]heliphene)chromium sandwich failed so far, but DFT evidence is presented to indicate that the target should be accessible.
Generation of synthetic equivalents of benzdiynes from benzobisoxadisiloles
Chen, Ya-Li,Sun, Jiang-Qin,Wei, Xin,Wong, Wai-Yeung,Lee, Albert W. M.
, p. 7190 - 7197 (2007/10/03)
Linear and angular benzobisoxadisiloles 14 and 16 can serve as the precursors for stepwise generations of the syntetic equivalents of 1,4- and 1,3-benzdiynes. Benzynes generated were trapped as [4+2] cycloaddition products. Two identical or different ring