Process for preparing boronic and borinic acids
A process for preparing boronic acids of the formula (I) and borinic acids of the formula (II), 1 by reaction of chloroaromatics of the formula (III) with lithium metal and boron compounds BW′W′W′″, where W′, W′ and W′″ are each, independently of one another, C 1 -C 6 -alkoxy, fluorine, chlorine, br...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for preparing boronic acids of the formula (I) and borinic acids of the formula (II),
1
by reaction of chloroaromatics of the formula (III) with lithium metal and boron compounds BW′W′W′″, where W′, W′ and W′″ are each, independently of one another, C
1
-C
6
-alkoxy, fluorine, chlorine, bromine, iodine, N(C
1
-C
6
-alkyl)
2
or S(C
1
-C
5
-alkyl), in a solvent at temperatures in the range from −100 to 80° C.
2 |
|---|