Abstract

The sugar ring of 1-O-benzyl-β-l-arabinopyranose (C12H16O5), (I) adopts the 4C1 chair conformation. In 1-O-benzyl-3,4-O-isopropylidene-β-l-arabinopyranose (C15H20O5), (II) and 1-O-benzyl-2-O-benzoyl-3,4-O-isopropylidene-β-l-arabinopyranose (C22H24O6), (III), the pyranosyl rings have a slightly distorted chair 4C1 towards 0H1 conformation. The five-membered isopropylidene ring in (II) and (III) adopts a slightly distorted envelope conformation. The methylene carbon atoms of the benzyl group are slightly displaced out of the plane of the phenyl ring in all three crystal structures. All three hydroxy groups in (I) participate in hydrogen bonds each as donor and acceptor simultaneously, forming a two-dimensional hydrogen-bond network. In (II), molecules linked by hydrogen bonds form polymeric chains along the b axis.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.