caa a22 4500 475761723 CHVBK 20180406123553.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1007/BF02494721 doi (NATIONALLICENCE)springer-10.1007/BF02494721 Heteroorganic betaines [Elektronische Daten] Reactions of betaines containing the+P−C−Si−S− fragment [I. Borisova, N. Zemlyanskii, A. Shestakova, V. Khrustalev, Yu. Ustynyuk, E. Chernyshev] The [Ph3P+−CMe2−SiMe2−SEt]Br− salt was prepared by the reaction of betaine Ph3P+−CMe2SiMeR−S− (1a: R=Me) with EtBr. Acetylation of betaine1a or Et3P+−CHMeSiMe2−S− (2a) afforded 2,2,6-trimethyl-1,3-dioxa-2-silacyclohex-5-ene-4-thione or the [Et3P+−CHMeSiMe2Cl]Cl− salt depending on the reagent ratio. The reactions of betaines1a, b (1b: R=Ph) or2 with compounds (R3Sn)2X (X=O or NMe) can be used for the generation of silanones [RMeSi=O] and silaneimines [RMeSi=NMe] in solutions. The reactivity of betaines Ph3P+−CHR1SiMeR2−S− (R1=H or Me and R2=Me or Ph) is determined by the equilibrium between the zwitterionic and ylide Ph3P=CR1SiMeR2SH tautomers that exist in solutions. Kluwer Academic/Plenum Publishers, 2000 silicon-containing organophosphorus betaines nationallicence phosphorus ylides nationallicence isomerism nationallicence alkylation nationallicence acetylation nationallicence silanones nationallicence silaneimines nationallicence X-ray diffraction analysis nationallicence Borisova I. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut Zemlyanskii N. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut Shestakova A. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut Khrustalev V. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813, Moscow, Russian Federation aut Ustynyuk Yu Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut Chernyshev E. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/5(2000-05-01), 933-941 1066-5285 49:5<933 2000 49 11172 https://doi.org/10.1007/BF02494721 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02494721 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Borisova I. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Zemlyanskii N. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Shestakova A. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Khrustalev V. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Ustynyuk Yu Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Chernyshev E. State Research Institute of the Chemistry and Technology of Organoelement Compounds, State Research Center of the Russian Federation, 38 sh. Entuziastov, 111123, Moscow, Russian Federation aut NATIONALLICENCE 773 0- Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/5(2000-05-01), 933-941 1066-5285 49:5<933 2000 49 11172 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 475759362 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer