18670-59-2Relevant academic research and scientific papers
New Reagents, XXXI: Synthesis of (Iodomethyl)- and (Diiodomethyl)element Compounds of the Elements Si, Ge, Sn, Pb
Kauffmann, Thomas,Ilchmann, Gabriele,Koenig, Rolf,Wensing, Michael
, p. 391 - 396 (2007/10/02)
Via Li-CH2-Hal or Li-CHHal2 (Hal = I, Br), respectively, the monohalides Ph3El-CH2-I (El = Si, Ge, Pb) and Ph3Ge-CH2-Br have been obtained (49-74percent) as well as the dihalides Ph3El-CHI2 (El = Si, Ge, Sn; 49-69percent), Ph3Pb-CHI2 (9percent), and Ph3Ge-CHBr2 (78percent).These compounds are favourable starting materials for corresponding monolithium compounds.Some of them have found synthetic applications.
STEREOSPEZIFISCHE CARBONYL(Z)OXIRANIERUNG VON BENZALDEHYD MIT IODO-TRIPHENYLSILYL- UND IODO-TRIPHENYLGERMYL-METHYLLITHIUM (1)
Kauffmann, Thomas,Koenig, Rolf,Wensing, Michael
, p. 637 - 640 (2007/10/02)
The reagents Ph3M-CH(I)Li (M=Si, Ge) react with benzaldehyde via anionic benzaldehyde adducts stereospecifically to give (Z)-1-phenyl-2-triphenylsilyl- (7a) or (Z)-1-phenyl-2-triphenylgermyl-oxirane (7b), respectively.By protolysis of the anionic benzaldehyde adducts at -65 deg C corresponding iodohydrins (5a,5b) have been obtained.
