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Pure Appl. Chem. 75(9), 1175-1182, 2003

Two-electron aromatics containing three and four adjacent boron atoms*

C. Präsang¹, A. Mlodzianowska¹, G. Geiseler¹, W. Massa¹,
M. Hofmann², and A. Berndt¹

1 Fachbereich Chemie der Philipps-Universit�t, 35032 Marburg Germany; 2 Anorganisch-Chemisches Institut der Universit�t Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany

Abstract: A two-electron aromatic bis (tris-trimethylsilylmethylene)-substituted tetraborane(4) was found to be a useful precursor for the synthesis of two-electron aromatic tetraboranes(6), triboracyclopropanates,as well as tetraboranes(6) distorted toward triboracyclopropanates with boryl bridges. Bishomo two-electron aromatics with a borata bridge and a protonated borata bridge, respectively, are also presented.

*Lecture presented at the XIth International Meeting on Boron Chemistry (IMEBORON XI), Moscow, Russia, 28 July - 2 August 2002. Other presentations are published in this issue, pp. 1157-1355.

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