53397-66-3Relevant articles and documents
Presumably Planar Derivatives of Tribenzocyclooctene: Synthesis of 10,11-Methano-1H-benzocycloocta-fluorene-1,14-dione and 1,1,14,14-Tetramethyl-10,11-methano-1H-benzo-cyclooctafluorene
Hou, Xue Long,Wong, Henry N. C.
, p. 1868 - 1869 (1987)
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Synthesis and Reactions of 3,4-Bis(trimethylsilyl)furan: Diels-Alder Cycloaddition, Friedel-Crafts Acylation, and Regiospecific Conversion to 3,4-Disubstituted Furans
Song, Zhi Zhong,Ho, Mei Sing,Wong, Henry N. C.
, p. 3917 - 3926 (2007/10/02)
As a versatile building block, 3,4-bis(trimethylsilyl)furan (1), conveniently obtained through a Diels-Alder reaction between 4-phenyloxazole and bis(trimethylsilyl)acetylene, was able to undergo Diels-Alder cycloadditions with dienophiles.In two separate
Crystal Structure of 5,6-Didehydrodibenzocyclo-octene
Graaff, Rudolf A.G. de,Gorter, Sybout,Romers, Cornelius,Wong, Henry N.C.,Sondheimer, Franz
, p. 478 - 480 (2007/10/02)
The structure of 5,6-didehydrobenzocyclo-octene C16H10 has been determined from single-crystal X-ray analysis by direct methods.The crystals are monoclinic, space group P21/c, Z=8, a=10.130(7), b=12.434(2), c=17.031(5) Angstroem, β=99.05(4) grad.Full-matrix least-squares refinement based on 1517 reflexions with intensities I>2?(I) and 527 non-significant ones in the range 2?(I)>I>?(I) converged to R(Rw)=0.053 (0.064) without and to R(Rw)=0.086 (0.066) including non-significant reflexions.The geometry of the two independent molecules A and B is slightly different, A being planar within 0.031 Angstroem, B within 0.174 Angstroem.The benzene rings in B are titled by 9.9 grad.The mean angular deformation of the acetylenic bonds is 26.0 grad.