TY - JOUR
T1 - Reaction of N-trimethylsilyl derivatives of amides and lactams with chloro(chloromethyl)dimethylstannane
T2 - Crystal and molecular structure of 1-(chlorodimethylstannylmethyl)-2-piperidone
AU - Bylikin, Sergey Yu
AU - Shipov, Aleksandr G.
AU - Negrebetsky, Vadim V.
AU - Baukov, Yuri I.
AU - Ovchinnikov, Yuri E.
AU - Pogozhikh, Sergei A.
AU - Pestunovich, Sergei V.
AU - Belousova, Lyudmila I.
AU - Belogolova, Elena F.
AU - Sidorkin, Valery F.
AU - Voronkov, Mikhail G.
AU - Pestunovich, Vadim A.
AU - Kalikhman, Inna
AU - Kost, Daniel
PY - 2006/2/1
Y1 - 2006/2/1
N2 - A general scheme of reactions between chloro(chloromethyl)dimethylstannane and N-trimethylsilylamides and -lactams was established by NMR and IR techniques. The reactions proceed via transmetallation followed by transformation of the N-stannylated intermediate (1) into (N-Sn)-coordinated O-stannylmethyl (2) and (O-Sn)-coordinated N-stannylmethyl (3) derivatives. In the cases of 2-piperidone and 2-hexahydroazepinone these products were isolated as individual compounds (2b,c and 3b,c). X-ray diffraction study of 1-(chlorodimethylstannylmethyl)-2-piperidone (3b) confirmed (3 + 2) -coordination state of the tin atom and axial positions of oxygen and halogen atoms. The experimental and quantum-chemically calculated structural parameters are discussed in comparison with those of related trigonal bipyramidal (TBP) silicon, germanium and tin derivatives. Calculation at the MP2/LanL2DZ/D95 level reveals that the stability of the (O-M)chelates increases in the following order: (O-Si) < (O-Ge) < (O-Sn).
AB - A general scheme of reactions between chloro(chloromethyl)dimethylstannane and N-trimethylsilylamides and -lactams was established by NMR and IR techniques. The reactions proceed via transmetallation followed by transformation of the N-stannylated intermediate (1) into (N-Sn)-coordinated O-stannylmethyl (2) and (O-Sn)-coordinated N-stannylmethyl (3) derivatives. In the cases of 2-piperidone and 2-hexahydroazepinone these products were isolated as individual compounds (2b,c and 3b,c). X-ray diffraction study of 1-(chlorodimethylstannylmethyl)-2-piperidone (3b) confirmed (3 + 2) -coordination state of the tin atom and axial positions of oxygen and halogen atoms. The experimental and quantum-chemically calculated structural parameters are discussed in comparison with those of related trigonal bipyramidal (TBP) silicon, germanium and tin derivatives. Calculation at the MP2/LanL2DZ/D95 level reveals that the stability of the (O-M)chelates increases in the following order: (O-Si) < (O-Ge) < (O-Sn).
KW - H, C, N and Sn NMR spectra
KW - Intramolecular coordination
KW - MP2/LanL2DZ/D95 calculations
KW - Synthesis
KW - Tin
KW - X-ray study
UR - http://www.scopus.com/inward/record.url?scp=30844470855&partnerID=8YFLogxK
U2 - 10.1016/j.jorganchem.2005.05.052
DO - 10.1016/j.jorganchem.2005.05.052
M3 - Article
AN - SCOPUS:30844470855
SN - 0022-328X
VL - 691
SP - 779
EP - 786
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 4
ER -