1,4-Bis-Trimethylsilanyl-1,4-Dihydro-Pyrazine synthesis
2synthesis methods
- Product Name:1,4-Bis-Trimethylsilanyl-1,4-Dihydro-Pyrazine
- CAS Number:31639-80-2
- Molecular formula:C10H22N2Si2
- Molecular Weight:226.47
Yield:31639-80-2 97.1%
Reaction Conditions:
with lithium at 5 - 10; for 4 h;
Steps:
1 ,4-bis(trimethylsilyl)-1 ,4-dihydropyrazine was prepared on a 40 g scale following a literature procedure (Sulzbach, R.A.; Iqbal,A. F. M.Angew. Chem. mt. Ed. Engi. 1971, 10, 127). The air-sensitive, yellow solid was purified by sublimation at 80° C./0.05 Ton. Preparative sublimation of the product yielded 97.1% recovery with no residue. The thermal decomposition temperature was determined to be greater than 265° C.
References:
US2016/289250,2016,A1 Location in patent:Paragraph 0210
