Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Patent
1989-06-12
1990-08-07
Sutto, Anton H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur containing
568 32, C07C14900
Patent
active
049470019
ABSTRACT:
The present invention provides a process for preparing halogenated sulfones by reacting a halogenating agent with a salt of a hydroxysulfone. The halogenated sulfones are useful as an intermediate for vitamin A or its carboxylic acid esters employed as medicines or feed additives.
REFERENCES:
Manchand et al, Helvetica Chimica Acta, vol. 59, pp. 387-396, 1976.
Olson et al, J. Org. Chem., vol. 41, pp. 3287-3293, 1976.
Mori Toshiki
Onishi Takashi
Suzuki Shigeaki
Takigawa Michio
Yamamoto Kazuo
Carr Deborah D.
Kuraray Company Ltd.
Sutto Anton H.
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