4,5-dimethyl-1-oxo-1-phenyl-2-pyridin-2-yl-1λ⁵-phosphinin-2-ol

3,4-dimethyl-1H-phosphole

3-(3,4-dimethyl-1-sulfanylidene-1λ⁵-phosphol-1-yl)propanenitrile

4-methyl-3-methylidene-1-phenyl-2H-1λ⁵-phosphole 1-oxide

ethyl 1-cyclohexyl-3,4-dimethylphospholane-2-carboxylate