| Title: |
N,N '-bis(silyl)ethylenediamines and 1.3-diaza-2-silacyclopentanes - Synthesis, reactions, crystal structures |
| Authors: |
Diedrich, F.; Ebker, C.; Klingebiel, Uwe; Reiche, C.; Labahn, T.; Magull, Joerg; Noltemeyer, M. |
| Contributors: |
Diedrich, F.; Ebker, C.; Klingebiel, Uwe; Reiche, C.; Labahn, T.; Magull, Joerg; Noltemeyer, M. |
| Publisher Information: |
Verlag Z Naturforsch |
| Publication Year: |
2002 |
| Collection: |
Georg-August-Universität Göttingen: GoeScholar |
| Description: |
Ethylenediamine reacts with chlorosilanes to give N,N'-bis(silyl)ethylenediamines [(H2C-NHSiRR'R")2,3: R, R'=Me; R" = CMe3; 4: R = H; R', R" = CMe3; 5: R, R'=CMe3, R" = OH]. In the reaction of N,N,N'-tris(trimethylsilyl)ethylenediamine with SiF4 the difluoro-bis(1.1.4-tris(trimethylsilyl)ethylenediamino)silane (6) is obtained. The 1.3-diaza-2-silacyclopentanes R2Si[N(SiMe2R')CH2](2), 7 - 10 (7: R = Cl, R' = Ph; 8: R = Cl, R' = CMe3; 9: R = H, Cl, R' = CMe3; 10: R = Br, R' = CMe3) are isolated from the reactions of the corresponding bis(silyl)ethylenediamines and halosilanes in Et2O with NEt3 as HHa1 acceptor. Dilithium derivatives of N,N'-bis(silyl)ethylenediamines react with fluorosilanes with formation of the 1.3-diaza-2-silacyclopentanes, R2Si[N(SiMe2R')CH2](2) (11 - 13) (11: R = F, R'= Me; 12: R = F, R' = CMe3; 13: R = CHMe2, R' = Me). N-Fluoro-di(tert-butyl)silyl-N,N'-bis(trimethylsilyl)ethylenediamine (14) is formed in the reaction of lithiated bis(trimethylsilyl)ethylenediamine with F2Si(CMe3)(2). 8 reacts in a molar ratio 1:2 with NaNH2 or NaOMe with formation of 15 and 16, respectively . R2Si[N(SiMe2CMe3)CH2](2), 15: R = NH2; 16: R = OMe]. 1.3-Bis(tert-butyldimethylsilyl)-2-tert-butyldimethylsiloxy-2-fluoro-1.3-diaza-2-silacyclopentane is the product of the reaction of 12 with LiOSiMe2CMe3. The crystal structures of 6 and 13 have been determined. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
000174273300012 |
| Availability: |
https://resolver.sub.uni-goettingen.de/purl?gro-2/44731 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.1D0CB117 |
| Database: |
BASE |