Journal of the Chemical Society. Perkin transactions I p. 3012 - 3015 (1981)
Update date:2022-08-05
Topics:
Ashcroft, William R.
Beal, Michael G.
Joule, John A.
Routes for the preparation of the four isomeric pyridine analogues of phthalide are described starting from the readily available pyridine 2,3- and 3,4-diacids, or derivatives, and making use of the differential reactivity of substituents at pyridine 2- versus 3- and 3- versus 4-positions.
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