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Synthesis ofβ-(methyl-o, m-carboranyl)-α,β-difluorovinyllithium from β-(methyl-o, m-carboranyl)-α,β-difuluoro-α-chloroethylene

✍ Scribed by L. I. Zakharkin; V. N. Lebedev

Book ID
112423944
Publisher
Springer
Year
1972
Tongue
English
Weight
60 KB
Volume
21
Category
Article
ISSN
1573-9171

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✍ Frederick C. Baines; Peter M. Collins; Farnoosh Farnia 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 683 KB

The title branched-trisaccharide derivatives (9 and 13) have been synthesised from methyl 2,3-O-(2-nitrobenzylidene)-a-L-rhamnopyranoside (2) using the 2nitrobenzylidene residue as a temporary blocking-group. Condensation of 2 with methyl (2,3,4-tri-O-acetyl-a-D-glucopyranosyl bromide)uronate afford