Synthetic Communications p. 3087 - 3097 (2005)
Update date:2022-08-04
Topics:
Elizalde, Luis E.
De Los Santos, Gladys
Garcia, Aida E.
Medellin, Diana I.
Acosta, Ricardo
The synthesis of four novel derivatives of 1′,3′,3′- trimethylspiro-[2H-1]-benzopyran-6-benzyloxo-2,2′-indoline is reported. The synthetic approach to these compounds involves the preparation of the key compound, 3-formyl-4-hydroxybenzophenone, by means o
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