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Tetraazadibora[3, 3]paracyclophane
Author(s) -
Paetzold Peter,
WellingOsterloh Ute,
Englert Ulli
Publication year - 2004
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200400336
Subject(s) - orthorhombic crystal system , chemistry , stereochemistry , derivative (finance) , borylation , medicinal chemistry , crystallography , crystal structure , aryl , organic chemistry , alkyl , financial economics , economics
Starting from the para ‐phenylenediamine derivative HN(SiMe 3 )‐C 6 H 4 ‐NH(SiMe 3 ), a lithiation and subsequent borylation give [(MeO) 2 B]N(SiMe 3 )‐C 6 H 4 ‐N(SiMe 3 )[B(OMe) 2 ] ( 1 ), the hydridation of which yields Li 2 [(H 3 B)N(SiMe 3 )‐C 6 H 4 ‐N(SiMe 3 )(BH 3 )] ( 2 ). Applying ZrCl 4 upon 2 initiates a condensation to give the title compound [‐N(SiMe 3 )‐ p ‐C 6 H 4 ‐N(SiMe 3 )‐BH‐] 2 , a hetero[3, 3]paracyclophane with two N‐B‐N chains that connect the para ‐phenylene units. The product 3 crystallizes in the orthorhombic space group P 2 1 2 1 2 1 .