An effective and environmentally benign preparation of 2,2-dichloroaldehydes has been achieved by chlorination of aldehydes with Cl-2(g) in CH2Cl2, using 2,6-lutidine hydrochloride as recoverable catalyst. Remarkable qualities of the process are: easy work up, high purity products, HCl as the only 'waste' stream and inherent bias to the scale up. (C) 2000 Elsevier Science Ltd. All rights reserved.
2,2-dichlorination of aldehydes with the 2,6-lutidine center dot HCl/Cl-2/CH2Cl2 system: An environmentally benign process suitable for scale up / Bellesia, Franco; L., De Buyck; Ghelfi, Franco; Libertini, Emanuela; Pagnoni, Ugo Maria; Roncaglia, Fabrizio. - In: TETRAHEDRON. - ISSN 0040-4020. - STAMPA. - 56:38(2000), pp. 7507-7511. [10.1016/S0040-4020(00)00640-2]
2,2-dichlorination of aldehydes with the 2,6-lutidine center dot HCl/Cl-2/CH2Cl2 system: An environmentally benign process suitable for scale up
BELLESIA, Franco;GHELFI, Franco;LIBERTINI, Emanuela;PAGNONI, Ugo Maria;RONCAGLIA, Fabrizio
2000
Abstract
An effective and environmentally benign preparation of 2,2-dichloroaldehydes has been achieved by chlorination of aldehydes with Cl-2(g) in CH2Cl2, using 2,6-lutidine hydrochloride as recoverable catalyst. Remarkable qualities of the process are: easy work up, high purity products, HCl as the only 'waste' stream and inherent bias to the scale up. (C) 2000 Elsevier Science Ltd. All rights reserved.
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