Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Organophosphorus-catalyzed diaza-Wittig reaction: application to the synthesis of pyridazines.Quality Control of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.
The elaboration of the first organophosphorus-catalyzed diaza-Wittig reaction is reported. This catalytic reaction is applied to the synthesis of substituted pyridazine I (R1 = H, Me; R2 = Et, Ph, Cy, p-OMe-C6H4, o-F-C6H4, iPr, thiophenyl) and phthalazine derivatives bearing electron-withdrawing groups (R3 = CO2Me, COPh, SO2Ph) with good to excellent yields from substrates containing a diazo functionality II as the starting material and a phospholene oxide as the catalyst.
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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem