New potential dendritic cores: Selective chemistry of dipentaerythritol

H Al-Mughaid, TB Grindley…

Index: Al-Mughaid, Hussein; Grindley, T. Bruce; Robertson, Katherine N.; Cameron, T. Stanley Canadian Journal of Chemistry, 2003 , vol. 81, # 6 p. 505 - 516

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Citation Number: 13

Abstract

Methods were developed to convert dipentaerythritol efficiently into di-O-benzylidene, di-O- cyclohexylidene, di-O-1-ethylpropylidene, and di-O-methylene diacetals. The known di-O- benzylidene acetal, considered to be a single isomer, was shown to be close to a statistical mixture of the cis, cis-, cis, trans-, and trans, trans-isomers. Structures were established by a combination of NMR spectroscopy and X-ray crystallography. Reaction of the di-O- ...