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1‐[1,7‐dicarba‐ closo ‐dodecaboran(12)‐1‐yl]aldoses: Novel Boron Neutron Capture Candidates
Author(s) -
Dahlhoff Wilhelm V.,
Bruckmann Joachim,
Angermund Klaus,
Krüger Carl
Publication year - 1993
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1993199301131
Subject(s) - chemistry , boron , lactone , derivative (finance) , anomer , stereochemistry , carborane , organic chemistry , financial economics , economics
Monolithiated 1,7‐dicarba‐ closo ‐dodecaborane(12) reacts with O ‐isopropylidene derivatives of D ‐erythrono‐1,4‐lactone ( 1 ), L ‐mannono‐1,4‐lactone ( 3 ) and with tetra‐ O ‐trimethylsilylated D ‐glucono‐1,5‐lactone ( 2 ) and D ‐gulono‐1,4‐lactone ( 4 ) to give the title compounds after deprotection. An X‐ray structure analysis of the protected L ‐mannofuranose carborane derivative 9 reveals that the more stable anomer has the β‐ L configuration.