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Effect of substituents at the 9-position on cytokinin activity

✍ Scribed by J.Eugene Fox; Chander K. Sood; James D. McChesney


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
191 KB
Volume
12
Category
Article
ISSN
0031-9422

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Swern oxidation of chromanol 1 led to ketone 3 with concomitant chlorination of the adjacent 4-position. Using Leuckarl conditions, chromanone 2 was converted to enamine 5. -4-Bromochromene-3-carbaldehyde 8, which was obtained by Vilsmeier-Arnold reaction from 7, turned out to be a suitable intermed