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A New Approach to Bis(arene)titanium(0) and ‐titanium(– I ) Complexes; Structure of Bis(arene)titanates(1–)
Author(s) -
Blackburn David W.,
Britton Doyle,
Ellis John E.
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199214951
Subject(s) - titanium , titanium tetrachloride , chemistry , cryptand , metal , ligand (biochemistry) , potassium , biphenyl , medicinal chemistry , ion , organic chemistry , biochemistry , receptor
The reduction of titanium tetrachloride with arene radical anions (such as biphenyl or 4,4′‐di‐ tert ‐butylbiphenyl potassium), as summarized in Equation (a), affords the corresponding bis(arene)titanates(l—) K[ 1 ] and K[ 2 ] in high yields, which were structurally characterized as K[2.2.2]cryptand complexes. The oxidation of K[ 1 ] and K[ 2 ] with I 2 leads to the corresponding neutral bis(arene)titanium complexes. Such metallocenes were previously accessible only by metal atom–ligand cocondensation or sonochemical reactions.