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Marsden, Stephen P.; McGonagle, Alison E.; McKeever-Abbas, Ben published an article about the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9,SMILESS:CC1=CP(CC1)(C2=CC=CC=C2)=O ).Recommanded Product: 707-61-9. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:707-61-9) through the article.

The first examples of heterocycle synthesis by iminophosphorane formation/intramol. aza-Wittig cyclizations that are catalytic in the organophosphorus component are reported. The reaction has been demonstrated in the synthesis of both azine (phenanthridine) and azole (benzoxazole) heterocycles. E.g., in presence of phospholene oxide I, reaction of isocyanate 2-OCNC6H4C6H4CO2Me-2, formed from acyl azide 2-N3COC6H4C6H4CO2Me-2 by Curtius rearrangement, gave 71% phenanthridine II. Catalyst loadings down to 1 mol % have been used with little or no loss in reaction efficiency. The intimate involvement of the phosphine oxide in the catalytic cycle has been verified by in situ IR spectroscopy.

Here is a brief introduction to this compound(707-61-9)Recommanded Product: 707-61-9, 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