4-ethyl-3-trimethylsilylhex-1-en-3-ol

((4-ethylhex-2-en-3-yl)oxy)trimethylsilane

4-ethylhex-2-en-3-yloxy(trimethyl)silane

(E)-4-ethyl-3-(trimethylsiloxy)-2-hexene

5-ethyl-4-trimethylsilylhept-2-en-4-ol