Triethoxysilane → 1-[3-(Triethoxysilyl)propyl]-4-trimethylsilylpiperazine

HRID 2099860Notes

Reaction equation

[CH2:1]([N:4]1[CH2:9][CH2:8][N:7]([Si:10]([CH3:13])([CH3:12])[CH3:11])[CH2:6][CH2:5]1)[CH:2]=[CH2:3].[CH2:14]([O:16][SiH:17]([O:21][CH2:22][CH3:23])[O:18][CH2:19][CH3:20])[CH3:15]>[Pt].C([Si](C)(C)O[Si](C=C)(C)C)=C.C1(C)C=CC=CC=1>[CH2:14]([O:16][Si:17]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])[CH2:3][CH2:2][CH2:1][N:4]1[CH2:9][CH2:8][N:7]([Si:10]([CH3:11])([CH3:13])[CH3:12])[CH2:6][CH2:5]1)[CH3:15]

Participants

Conditions

Temperature: 70 °C

Procedure

A flask equipped with a stirrer, reflux condenser, dropping funnel and thermometer was charged with 99.2 g (0.5 mole) of 1-allyl-4-trimethylsilylpiperazine and 0.65 g of a toluene solution of platinum-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (platinum content 3 wt %) and heated at 70° C. Once the internal temperature became constant, 82.2 g (0.5 mole) of triethoxysilane was added dropwise over 4 hours. Stirring was continued for a further one hour at the temperature. The reaction solution was distilled, collecting 137.5 g of a fraction having a boiling point of 119-122° C./50 Pa.

Workup

customA flask equipped with a stirrer
temperaturereflux condenser
distillationThe reaction solution was distilled
customcollecting 137.5 g of a fraction

Sources & evidence

ORD record: ord-64b544a228dd46e4a546522179a9a66b
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07569691B2

Reaction notes

Loading…