Oxidation of Hecogenin and Diosgenin Derivatives with Dimethyldioxirane

来源 :中国化学快报：英文版 | 被引量 : 0次 | 上传用户：rommer006

【摘要】

：

Diacetyl derivative of hecogenin 1 was oxidized to unsaturated ketone 5 via allylic alcohol 3 when it reacted with dimethyldioxirane (DMDO). The structure of 3

【作者】

：

BaoKunZHU HongBinZHANG YuShunZ

【机构】

：

TheSchoolofPharmacy,TheSchoolofChemistry

【出处】

：

中国化学快报：英文版

【发表日期】

：

2005年2期

【关键词】

：

龙舌蓝皂苷配基薯蓣皂苷配基二氧甲基双环氧乙烷氧化物 X射线分析化学结构 Oxidation dimethyldioxirane hecogenin

【基金项目】

：

International Cooperation Division of Yunnan Provincial Science & Technology Department，Yunnan University

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

Diacetyl derivative of hecogenin 1 was oxidized to unsaturated ketone 5 via allylic alcohol 3 when it reacted with dimethyldioxirane (DMDO). The structure of 3 was confimed by X-ray crystal analysis and the highly regioselectivity of DMDO to different ole

其他文献

Finkelstein Reaction in Functionalized Crown-ether Ionic Liquids

期刊

Finkelstein反应离子液体绿色化学冠醚官能团亲核置换反应溶剂Functionalized ionic liquids green che

Asymmetric Synthesis of （-）-（4R, 5R）-4-[5-（Benzo[1, 3]dioxol-5-yl）-4- hydroxyl- 1-（pyridin-2-yl）-4,

The asymmetric synthesis of (-)-(4R, 5R)-4-[5-(benzo[1, 3]dioxol-5-yl)-4-hydroxyl-1-epoxidation procedure as key step was described.

期刊

135-三芳基-4-羟基-45-氢-吡唑不对称合成环氧化作用催化作用Asymmetric synthesis Juliá-Colonn

养护湿度对回弹法检测混凝土强度的影响

在分析混凝土养护湿度对混凝土回弹值、混凝土强度影响的基础上,分析了养护湿度对回弹法检测混凝土强度的影响.

期刊

养护湿度回弹值混凝土强度回弹法测强

高层建筑外墙饰面砖防坠落施工方案

根据在工程现场施工的实际,结合高层建筑施工经验,从基层处理、粘贴材料和铺贴方法诸方面介绍了预防外墙饰面砖坠落的施工方案.

期刊

外墙饰面砖施工方案高层建筑防坠落现场施工施工经验基层处理粘贴材料工程铺贴

Solid-phase Synthesis of Unsaturated β-Dicarbonyl Compounds from Polymer-supported 4-（Phenylseleno）m

The solid-phase synthesis of unsaturated β-dicarbonyl compounds has been reported.

期刊

固相有机合成不饱和β-二羰基化合物4-苯硒基吗啉α-甲酰环己酮聚撑化合物Solid phase organic synthesis 4-(pheny

Assembly of a Library of Trisaccharides as Mimics of Sialyl Lewis X via Random Combination Strategy

A small library containing six positional isomers of fucosyl on the modified lactoside backbone as mimics of the Sialyl Lewis X was synthesized via random combi

期刊

SLe^x低聚糖合成随机组合糖基化三糖HPLCSLe~x selectin oligosaccharide synthesis random

吹扫法清除烟道积灰实践

0引言燃料在玻璃熔窑内燃烧后的废气从小炉下行到蓄热室,再经烟道和烟囱排出.烟道是气体的通道,可以通过烟道上设置的各种闸板开度调节气体流量和窑内气体压力.某厂燃油熔窑

期刊

蓄热室玻璃熔窑烟道吹扫闸板助燃排出废气空气气体流量

Synthesis and Cytotoxicity Evaluation of Some Isoquinoline Derivatives Related to 1-Arylnaphthalene

Two series of novel compounds designed as hybrids of 1-arylnaphthalene lignans with dihydroisoquinolines or isoquinolines were synthesized and evaluated for the

期刊

异喹啉衍生物细胞毒素合成方法分子结构Isoquinoline derivatives 1-arylnaphthalene lignans synt

提高Φ2．4m×lOm开流水泥磨产质量的技术途径

期刊

水泥立窑磨机粉磨选粉机开流磨

Efficient Synthesis of the C1-C7 Fragment of Didemnaketal A

The stereoselective synthesis of the CI-C7 fragment (3R,4S,6R)-3,4-di[(tert-butyldimethylsilyl)oxy]-7-hydroxy-6-methylheptan-2-one, which is the crucial interme

期刊

立体选择性合成分子内部手性感应MITSUNOBU反应C1-C7碳水化合物天然产物DidemnaketalA

Oxidation of Hecogenin and Diosgenin Derivatives with Dimethyldioxirane

与本文相关的学术论文