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Alan Thomas Costello

Imperial Chemical Industries

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Featured researches published by Alan Thomas Costello.

Synthetic Communications | 1987

A Convenient Synthesis of Certain Hydroxymethyl Tetrahalogenobenzyl Bromides

Alan Thomas Costello; David J. Milner

Abstract Surprisingly, toluene solutions of certain tetrahalogenobenzene dimethanols rapidly afford the corresponding hydroxymethyl tetrahalogenobenzyl bromides in about 90% yield on treatment with hydrobromic acid without the need for continuous removal of the first formed product.

Synthetic Communications | 1986

An Improved Method Forthe Conversion Ofcertain Aromatic Carboxylic Acids into Benzylic Chlorides

Alan Thomas Costello; David J. Milner

Abstract A novel one-pot procedure, which affords benzylic chlorides in about 70% yield, involves reduction of benzoyl chlorides by aqueous sodium borohydride as a key step.

Archive | 1985

Selective halogenation of benzene di and tri-methanol compounds

Alan Thomas Costello; David J. Milner

Archive | 1984

Fluorination process for the production of nuclear fluorinated phthaloyl- and terephthaloyl fluorides

Peter John Vernon Cleare; Alan Thomas Costello

Archive | 1974

Reactive triazinyl dyestuffs

Peter William Austin; Alan Thomas Costello; Allen Crabtree

Archive | 1976

Disperse monoazo dyestuffs derived from 3,5-dinitro-2-amino thiophene as disazo component and an arylamine coupling component

David Boyd Baird; Alan Thomas Costello; Brian Ribbons Fishwick; Robert David Mcclelland; Peter Smith

Archive | 1978

Reactive dyestuffs containing chlorine or fluorine substituents and one or more pyridine radicals linked to the dyestuff at the 2-, 4- or 6-position

Duncan Adrian Sidney Phillips; Brian Anderson; Neville Jackson; Cecil Vivian Stead; Alan Thomas Costello

Archive | 1985

Preparation of benzyl alcohols

Alan Thomas Costello; David J. Milner

Archive | 1984

FLUORINATION PROCESS FOR PHTHALOYL FLUORIDES

Peter John Vernon Cleare; Alan Thomas Costello

Archive | 1978

Disperse monoazo dyestuffs containing a thiophene residue

David Boyd Baird; Alan Thomas Costello; Brian Ribbons Fishwick; Robert David Mcclelland; Peter Smith

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Brian Anderson

Imperial Chemical Industries

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Cecil Vivian Stead

Imperial Chemical Industries

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David J. Milner

Imperial Chemical Industries

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Duncan Adrian Sidney Phillips

Imperial Chemical Industries

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Neville Jackson

Imperial Chemical Industries

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Robert Joseph Lindsay

Imperial Chemical Industries

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Brian Ribbons Fishwick

Imperial Chemical Industries

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David Boyd Baird

Imperial Chemical Industries

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Peter Smith

Imperial Chemical Industries

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Robert David Mcclelland

Imperial Chemical Industries

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