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ChemInform Abstract: New Cyclizing Agents in the Synthesis of β-Ionone from Pseudoionone.

✍ Scribed by Yu. D. Markovich; A. V. Panfilov; Yu. N. Platunov; A. A. Zhirov; S. I. Kosenko; A. T. Kirsanov

Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis

New Cyclizing Agents in the Synthesis of β-Ionone from Pseudoionone.

-The cyclization of pseudoionone (I) to β-ionone (III) is achieved in excellent selectivity using mixtures of trifluoroacetic acid with sulfuric or fluorosulfonic acid (5.5 : 1-1.25). Additionally, these mixtures can be used directly to transform α-ionone (II) to the β-isomer (III). -(MARKOVICH, YU. D.;

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