in cyclohexane Irradiation (UV/VIS); under N2: irradiation of cyclohexane solns. of (C6H2(CH3)3Si(CH3)2)2 in presence of a 1-fold excess of (C4H9)3SnH and a 10-fold excess of CH3OSi(CH3)3 with an array of low-pressure mercury lamps at 254 nm for 4-12 h;; separation and purification by preparative gas chromatography;;
(Bu3Sn)2Cu(CN)Li2 in tetrahydrofuran T=-40 - 0°C; 1H-NMR spectra; different conditions, other cuprates and further acetylenic ether substrates; Product distributionMechanism;
