3-iodo-1,1,2,2-tetramethylcyclopropane

2,2,3,3-tetramethylcyclobutan-1-one

(+-)-4-Hydroxy-1-(1.1.2-trimethyl-pentyl)-benzol

3,3,4-trimethylpent-4-en-2-one

3-azido-2,3-dimethylbutan-2-ol