TY - JOUR
T1 - Synthesis and Structure of 1,5-Di-(Ethylphenyl)-1,5-Dimethyl-3,3,7,7-Tetraphenylcyclotetrasiloxane: a Novel Cyclotetramer
AU - Clarke, S. R.
AU - Matisons, J.
AU - Skelton, Brian
AU - White, Allan
AU - Markovic, E.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Herein we report the first synthesis of 1,5di-( ethylphenyl)-1,5-dimethyl-3,3,7,7-tetraphenylcyclotetrasiloxane using a new 'One Pot' procedure as recently reported for the preparation of strictly alternating 1,1,5,5-tetramethyl-3,3,7,7-tetraphenylcyclotetrasiloxane by the heterofunctional condensation of diphenylsilanediol with (phenylethyl)methyldichlorosilane in the presence of the tertiary amine, triethylamine (Nguyen et al. Silicon 6: 21-26, 2014). The prepared 1,5-di-(ethylphenyl)-1,5-dimethyl-3,3,7,7-tetraphenylcyclotetrasiloxane was fully characterized by single-crystal X-ray diffraction, H-1, C-13 and Si-29 nuclear magnetic resonance spectroscopy, elemental analysis, mass spectroscopy, thermogravimetric analysis and differential scanning calorimetric studies.
AB - Herein we report the first synthesis of 1,5di-( ethylphenyl)-1,5-dimethyl-3,3,7,7-tetraphenylcyclotetrasiloxane using a new 'One Pot' procedure as recently reported for the preparation of strictly alternating 1,1,5,5-tetramethyl-3,3,7,7-tetraphenylcyclotetrasiloxane by the heterofunctional condensation of diphenylsilanediol with (phenylethyl)methyldichlorosilane in the presence of the tertiary amine, triethylamine (Nguyen et al. Silicon 6: 21-26, 2014). The prepared 1,5-di-(ethylphenyl)-1,5-dimethyl-3,3,7,7-tetraphenylcyclotetrasiloxane was fully characterized by single-crystal X-ray diffraction, H-1, C-13 and Si-29 nuclear magnetic resonance spectroscopy, elemental analysis, mass spectroscopy, thermogravimetric analysis and differential scanning calorimetric studies.
U2 - 10.1007/s12633-014-9210-6
DO - 10.1007/s12633-014-9210-6
M3 - Article
SN - 1876-990X
VL - 8
SP - 99
EP - 104
JO - Silicon
JF - Silicon
IS - 1
ER -