In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Improved syntheses and characterization of the isomers of 3-methyl-1-phenylphospholene 1-oxide, published in 1978-04-30, which mentions a compound: 707-61-9, mainly applied to phospholene oxide isomer; NMR phospholene oxide; IR phospholene oxide; Raman laser phospholene oxide; mass spectra phospholene oxide, Quality Control of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.
Isomerically pure 3-methyl-1-phenyl-2-phospholene 1-oxide and 3-methyl-1-phenyl-3-phospholene 1-oxide were prepared and characterized by 1H (60 and 270 MHz), 31P and 13C NMR, IR, Laser Raman, and mass spectrometry. 1,4-Cycloaddition of isoprene and PhPCl2 after hydrolysis of the addition product, yielded a mixture of the above 2-isomer and small amounts of 3-isomer from which pure 2-isomer was separated by fractional crystallization The analog reaction with PhPBr2 gave isomerically pure 3-isomer. An improved and shortened work-up procedure for the phospholene oxides was used resulting in higher yields.
Here is a brief introduction to this compound(707-61-9)Quality Control of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, if you want to know about other compounds related to this compound(707-61-9), you can read my other articles.
Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem