Tetrahydrofuran → Bis(tributylstannyl)acetylene
Reaktionsgleichung
[CH2:1]([Sn:5](Cl)([CH2:10][CH2:11][CH2:12][CH3:13])[CH2:6][CH2:7][CH2:8][CH3:9])[CH2:2][CH2:3][CH3:4].O1[CH2:19][CH2:18][CH2:17][CH2:16]1>>[CH2:1]([Sn:5]([C:2]#[C:1][Sn:5]([CH2:6][CH2:7][CH2:8][CH3:9])([CH2:10][CH2:11][CH2:12][CH3:13])[CH2:16][CH2:17][CH2:18][CH3:19])([CH2:10][CH2:11][CH2:12][CH3:13])[CH2:6][CH2:7][CH2:8][CH3:9])[CH2:2][CH2:3][CH3:4]Komponenten
3
Versuchsvorschrift
In synthetic route `C1` of FIG. 1, an alternate two step process for preparing BFPE consistant with the route in Sutherlin et al., Macromolecules, v.19, p.1260-1265 (1986) is shown. The first step is coupling commercially available tri-n-butyltin chloride (Aldrich Chemicals, Milwaukee, Wis.) with lithium acetylide ethylenediamine complex. These precursors are heated to reflux in anhydrous tetrahydrofuran (THF) under an argon blanket to form bis(tri-n-butylstannyl)ethyne. The THF solution of bis(tri-n-butylstannyl)ethyne is subsequently washed and then dried over anhydrous sodium sulfate.
Aufarbeitung
- temperatureThese precursors are heated