The continuous flow synthesis of butane-2,3-diacetal protected building blocks using microreactors
作者:Catherine F. Carter、Ian R. Baxendale、John B. J. Pavey、Steven V. Ley
DOI:10.1039/b924309g
日期:——
The continuous flow synthesis of butane-2,3-diacetal protected derivatives has been achieved using commercially available flow chemistry microreactors in concert with solid supported reagents and scavengers to provide in-line purification systems. The BDA protected products are all obtained in superior yield to the corresponding batch processes.
Preparation of enantiopure butane-2,3-diacetals of glycolic acid and alkylation reactions leading to α-hydroxyacid and amide derivatives
作者:Steven V. Ley、Elena Diez、Darren J. Dixon、Richard T. Guy、Patrick Michel、Gillian L. Nattrass、Tom D. Sheppard
DOI:10.1039/b412788a
日期:——
The preparation of butane-2,3-diacetal protected glycolic acid and related systems is described together with highly selective alkylationreactions of (R,R) and (S,S) butanediacetal protected glycolic acid. These compounds are readily deprotected to give enantiopure alpha-hydroxyacids, alpha-hydroxyesters or alpha-hydroxyamides by suitable choice of conditions.
Flow Ozonolysis Using a Semipermeable Teflon AF-2400 Membrane To Effect Gas−Liquid Contact
作者:Matthew O’Brien、Ian R. Baxendale、Steven V. Ley
DOI:10.1021/ol100322t
日期:2010.4.2
A flow-through chemistry apparatus has been developed which allows gases and liquids to contact via a semipermeable Teflon AF-2400 membrane. In this preliminary investigation, the concept was proven by application to ozonolysis of a series of alkenes.