Investigation of 4-acetyl-2,6-dibenzyl-1,5-dihydroxy-2-methylcyclohexa-4,6-dien-3-one by X-ray crystallography and 1H-NMR spectroscopy

被引：0

作者：

Hauteville, M

Stomberg, R ^{[1
]}

Duclos, MC

机构：

[1] Univ Gothenburg, Dept Inorgan Chem, SE-41296 Gothenburg, Sweden

[2] Univ Lyon 1, Lab Biochim Analyt & Synth Bioorgan, F-69622 Villeurbanne, France

来源：

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY | 1999年 / 29卷 / 06期

关键词：

C-methylphloracetophenone; C-benzylation; X-ray crystallography; H-1-NMR spectroscopy;

D O I：

10.1023/A:1009523804263

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Benzylation of 3-methylphloracetophenone [1-(2,4,6-trihydroxy-3-methylphenyl) ethanone] (3) with benzyl chloride gave 4-acetyl-2,6-dibenzyl-1,5-dihydroxy-2-methylcyclohexa-4,6-dien-3-one (5). Compound 5 crystallizes in the orthorhombic space group Fdd2 with a = 17.586(2), b = 42.891(5), c = 10.279(2) Angstrom, V = 7753(2) Angstrom,(3) and Z = 16. When crystals of 5 were dissolved in [D-6]acetone the compound underwent tautomerization and a mixture of 5 and its keto form 4 was obtained (keto form/enol form ratio 1:4).

引用

页码：681 / 685

页数：5

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