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Chiral Crown Ether-anchored Polysiloxanes as Capillary Gas Chromatography Stationary Phases by Xi-Chun Zhou; Hui Yan; Yuan-Yin Chen; Cai-Ying Wu; Xue-Ran Lu is a Chemistry article available to read on EtoBox.

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Two chiral stationary phases, named Chirasil-man-18C6-25 and Chirasil-aza-15C5-25, were prepared by hydrosilylating two allyl-crown ethers onto polyhydromethylsiloxane containing 25% Si-H units, respectively. The chiral allyl-crown ethers were synthesized using D-mannitol and (+)-2-amino-l-butanol as chiral sources. Fused-silica capillary gas chromatography showed that the two novel phases had similar characteristics as previously reported crown ether bounded polysiloxanes. It was found that the Chirasil-man-18C6-25 phase had enantioselectivity to racemates bearing both an aromatic moiety and a primary amino or hydroxyl group in their structure. This phase also exhibited good thermal stability.

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Author

Xi-Chun Zhou; Hui Yan; Yuan-Yin Chen; Cai-Ying Wu; Xue-Ran Lu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)

Published

1996

Language

EN

Field

Chemistry (Physical Sciences)