3.4- Methylenedioxyphenyl bromid

Example 24 Add. 1 mole of 3-(3,4-methylenedioxyphenyl) propylene,. 25 mole of methyl nitrite,. 008 mole palladium bromide as a catalyst,. 5L of methanol and 36g of water to a flask. Stir magnetically for 2 hoursat 25C. Yield of 3,4-methylenedioxyphenylacetone (also known as 3,4-... 

And the longest chain that has been explored in this Muni Metro series is the six-carbon hexyl chain which is, quite logically, the L-series, sort of the end of the Taraval line (see under METHYL-J for an explanation). The central compound for all the L-compounds was the ketone 1-(3,4-methylenedioxyphenyl)-2-hexanone, which was prepared by the Grignard reagent of (n)-amyl bromide with piperonal to give... 

The Grignard reaction of cyclohexanone 15 with 2,3-methylenedioxyphenyl magnesium bromide 14 in THF followed by dehydration and hydroboration-oxidation produced cyclohexanol 16, which afforded cyclohexanone derivative 17 by Jones oxidation. 

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