Amadori ketoses with calcium hydroxide and the Kiliani reaction on 1-deoxy ketoses: two approaches to the synthesis of saccharinic acids
Amadori ketoses with calcium hydroxide and the Kiliani reaction on 1-deoxy ketoses: two approaches to the synthesis of saccharinic acids
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DOI:
10.1016/j.tetlet.2005.11.018
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发表时间:
2006-01-16
影响因子:
1.8
通讯作者:
Fleet, GWJ
中科院分区:
文献类型:
--
作者:
Hotchkiss, DJ;Jenkinson, SF;Fleet, GWJ
Saccharinic acids (2-C-methyl aldonic acids) may be formed by treatment of Amadori ketoses with calcium hydroxide or by the Kiliani reaction of 1-deoxy ketoses with cyanide. Thus (i) N,N-dibenzyl or N,N-dimethyl-1-amino-1-deoxy-D-fructose with aqueous calcium hydroxide afforded 2-C-methyl-D-ribono-1,4-lactone under green conditions and (ii) reaction of methyl magnesium bromide with 2,3-O-isopropylidene-D-erythronolactone gave 1-deoxy-3,4-O-isopropylidene-D-ribulose, which on subsequent treatment with aqueous sodium cyanide and hydrolysis, formed 2-C-methyl-D-arabinono-1,4-lactone. Such branched sugar lactones are likely to be of value as chirons containing branched carbon chains. (c) 2005 Published by Elsevier Ltd.