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2005
Hydroxylation
O 0216
α-Hydroxylation of Carbonyls Using Iodine. — Cyclic ketones and various aldecan be readily converted to α-hydroxyketals by iodine in the presence of KOH
19- 054 hydes
in MeOH as the solvent. However, different reaction pathways are observed for conjugated six-membered ring ketones (VIII) and (X) and seven- or five-membered cyclic
ketones (XII) and (XV), thus showing the limitations of the method. — (ZACUTO*,
M. J.; CAI, D.; Tetrahedron Lett. 46 (2005) 3, 447-450; Dep. Process Res., Merck
Res. Lab., Merck&Co., Inc., Rahway, NJ 07065, USA; Eng.) — Mais
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