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Stereospecific synthesis of 5,6-dihydro-2H-pyran system. High-pressure cycloaddition of 1:2,3:4-di-0-isopropylidene- α-D-galactopyranose-6-ulose to 1-methoxybuta-1,3-diene

✍ Scribed by Janusz Jurczak; Tomasz Bauer; Sławomir Jarosz

Book ID: 104233891
Publisher: Elsevier Science
Year: 1984
Tongue: French
Weight: 237 KB
Volume: 25
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)81526-4

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✦ Synopsis

The high-pressure cycloaddition of 1:2,3:4-di-0-isopropyIidene-0(*2-galactopyra-) . It is noteworthy that the specific rotation of diastereoisomer 2 with opposite configuration at c-6 was [MID-81°(cl,CHC13). w

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