6-ethyl-7-chloromethyl-1,1,4,4-tetramethyl-1,2,3,4-tetrahydro-naphthalene
1-(3-ethyl-5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-ethanone
3-ethyl-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-[2]naphthaldehyde
1,1,4,4-Tetramethyl-6-aethyl-7-propionyl-tetralin
1,1,4,4-Tetramethyl-6-ethyl-7-isobutyryl-tetralin