Publisher: Chemical Society of Nigeria

Synthesis of 1-(2-IODOETHYL)Pyrolidine-Substituted Cyclopentadiene and Their Transition Metal Complexes

G. U. Obuzor, L. Booth
KEYWORDS: SYNTHESIS OF 1-(2-IODOETHYL)PYROLIDINE-SUBSTITUTED CYCLOPENTADIENE AND THEIR TRANSITION METAL COMPLEXES

ABSTRACT:

The reaction of 1-(2-iodoethyl)pyrrolidine and sodium cyclopentadiene (I: 1.5 ratio) in tetrahydrofuran (THF) at 25 OC under argon for 24hr, afforded after hydrolysis a mixture of 1-(2-cyclopentadienylethyl)pyrrolidine. The mixture was purified by fractional distillation under reduced pressure to give the desired product as a mixture of two isomers, b.p. (98I04 OC/lmm Hg) in 79% yield. The isomers were characterized by '13C, 1H NMR (300MHZ, D2O) IR, Microanalysis and Mass Spec. The complexation of the combustible lithium salt of 1-(2-cyclopentadienylethyl)pyrrolidine and Zirconium tetrachloride (ZrCI4) under argon in air-free anhydrous dimethoxyethane at 80 OC to room temperature for three days gave the desired product after work-up as a viscous red oil MS(FAB)m/z 322 (C IIHI7NZrCI2)73%. The oil was stable under argon. The titanium complex MS(FAB)m/z 277(CIIH17NTiCI4) was obtained by the reaction of the lithium salt of I-(2-cyclopentadienylethyl)pyrrolidine with TiCI4.2THF in THF as a green mixture and is stable only in THF.   


Download
View Online
219
views
0
downloads
Subject
Publication Year
Place Of Publication
Contributors