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Four‐Membered 1,8‐Naphthalenediyl Transition Metallacycles
Author(s) -
Tinga Marcus A. G. M.,
Schat Gerrit,
Akkerman Otto S.,
Bickelhaupt Friedrich,
Smeets Wilberth J. J.,
Spek Anthony L.
Publication year - 1994
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19941271006
Subject(s) - chemistry , transition metal , platinum , naphthalene , crystal structure , metal , stereochemistry , crystallography , mass spectrometry , medicinal chemistry , organic chemistry , catalysis , chromatography
Five 1,8‐naphthalenediyl transition metal compounds 2 were prepared by treating either 1,8‐naphthalenediylmagnesium ( 1 ) or 1,8‐dilithionaphthalene with the appropriate transition metal dichloride L n MCl 2 : L n M = Cp 2 Ti ( 2a ), (PEt 3 ) 2 Pt ( 2b ), Cp * PPh 3 Rh ( 2c ), Cp * PPh 3 Ir ( 2d ), or Cp * 2 Zr ( 2e ). The resulting metallacycles were characterized by NMR and mass spectrometry. X‐ray crystal structure analyses were performed for (1,8‐naphthalenediyl)titanocene ( 2a ) and (1,8‐naphthalenediyl)bis(triethylphosphane)platinum ( 2b ). Despite the strain induced by the four‐membered metal‐containing rings, the naphthalene units show remarkably small distortions.