Hinsberg oxindole synthesis

The Hinsberg oxindole synthesis is a method of preparing oxindoles from the bisulfite adducts of glyoxal.^{[1][2][3][4][5]}

See also

• Friedel-Crafts alkylation
• Stolle synthesis

References

1. ^ Hinsberg, O. Ber. Dtsch. Chem. Ges. 1888, 21, 110; 1898, 31, 250 - 54; 1908, 41, 1367.
2. ^ Hinsberg, O.; Rosenzweig, J. Ber. Dtsch. Chem. Ges. 1894, 27, 32S3
3. ^ Hollins, C. "Synthesis of Nitrogen Ring Compounds", 1924, London, p 112.
4. ^ Burton, H. J. Chem. Soc. 1932, 546.
5. ^ Elderfield, R.C. Heterocyclic Compounds 3, 1952, New York, p 139