in not given addn. of an organotin chloride soln. to a slurry of LiNMe2 (under an inert atmosphere, under anhydrous conditions), stirring for 2 h at room temp.,; flash evapn., removing of both solvents and product, leaving small amount of solid residue, distn. of reaction mixt. without sepn., solvents are distilled off, distn. at reduced pressure;

n-butyllithium; potassium tert-butylate in pentane byproducts: Sn(CH3)4; under exclusion of oxygen and moisture, reaction of Me2NC2H4NMe2 with two equivalents of n-C4H9Li/tert-BuOK (mixing at -78°C, then warming to room temp.), stirring for 12 h, cooling to -60°C, addn. of Me3SnCl, thawing, hydrolysis; after sepn. of solid a liquid is obtained, removal of solvents, distillation, three fractions (25°C/13-133 Pa, 25°C/0.1 Pa, 70°C/0.1 Pa) with various product ratios are obtained; total yield of H2CC(NMe2)SnMe3 11percent;

refluxing for 1 h;;

in diethyl ether 20°C;

in xylene byproducts: Me2NH; N2-atmosphere; refluxing for 15 min; solvent removal; product mixt. not sepd., detd. by (31)P-NMR spectroscopy; further unidentified product;

in xylene byproducts: Me2NH; N2-atmosphere; refluxing for 15 min; solvent removal; product mixt. not sepd., detd. by (31)P-NMR spectroscopy; further unidentified product;

in neat (no solvent) Me3SnNMe2 added to 3-ethynyl-1,3,5-cycloheptatriene, react. mixture stirred without a solvent for 5 min at ambient temp., Me2NH evapd.; Me2NH evapd., product isolated in quant. yield;

bis (triortho-tolylphosphine)palladium(II) chloride in toluene 8 h; Heating;

1: trimethylene imine; Me3SnNMe2 in toluene Heating; 2: 7-iodosancycline With bis (triortho-tolylphosphine)palladium(II) chloride in toluene 24 h; Heating; Further stages.;

1: morpholine; Me3SnNMe2 in toluene Heating; 2: 7-iodosancycline With bis (triortho-tolylphosphine)palladium(II) chloride in toluene 24 h; Heating;