Regioselective Para Chlorination of Alkoxybenzenes by Use of Alumina Supported Copper(II) Chloride
Alkoxybenzenes were highly regioselectively chlorinated by use of copper(II) chloride supported on neutral alumina in chlorobenzene to give p-alkoxychlorobenzenes in high yield.The p/o ratios were more than 30.
Monohalogenation of alkyl phenyl ethers in micellar and vesicular media
The rates and regioselectivities of monohalogenation of C6H5OR (1: a, R = C5H11;b, R = C9H19; c, R = C12H25) by chlorine water and bromine water to give 4-XC6/su
Jaeger, David A.,Clennan, Malgorzata Wegrzyn,Jamrozik, Janusz
p. 1171 - 1176
(2007/10/02)
SELECTIVITY OF AROMATIC CHLORINATION REACTIONS WITHIN A REVERSED-PHASE LIQUID CHROMATOGRAPHY COLUMN
Substrate selectivity was obtained in the chlorination of a series of n-alkyl phenyl ethers by chlorine water on a reversed-phase high performance liquid chromatography column at 25 deg C.
Jaeger, David A.,Clennan, Malgorzata Wegrzyn,Leyden, Donald E.,Murthy, R. S. Shreedhara
p. 4805 - 4808
(2007/10/02)
Monochlorination of n-Alkyl Phenyl Ethers in Micellar Sodium Dodecyl Sulfate
The effect of chain length on the regioselectivity and rate of monochlorination of C6H5OR (1: a = n-C5H11; b, R = n-C9H19; c, R = n-C12H25) with Cl2 in micellar sodium dodecyl sulfate was determined.On going from 1a to 1b to 1c, only modest changes were observed in the para/ortho product ratio and in relative rate.These results were interpreted to indicate that the hydrophilic character of C6H5O dominates the lipophilic character of R in the micellar reactivity of the ethers.
Jaeger, David A.,Wyatt, Jacqueline R.,Robertson, Raymond E.
p. 1467 - 1470
(2007/10/02)
POLY(ETHYLENE GLYCOL)S AS PHASE TRANSFER CATALYSTS IN THE ALKOXYLATION OF HALOBENZENES OF ALKYL ARYL ETHERS
Mono and di-halobenzenes and alkoxide ions gave monoalkoxybenzenes, but no phenols, when catalyzed by high molecular weight poly(ethylene glycol)s as phase transfer catalysts.Bromobenzenes were more reactive than chlorobenzenes but gave more side products, and for alcohols the reactivity was primary>secondary>tertiary.
Neumann, R.,Sasson, Y.
p. 3437 - 3440
(2007/10/02)
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