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Formation of α,α'-Bis(substituted benzylidene)cycloalkanones from Masked Aldehydes Promoted by Samarium(III) Triiodide

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Chinese Chemical Letters 2004年第5期15卷 511-514页

作者： XiaoXiaWANG yongminzhang DepartmentofChemistry ZheiiangUniversity（XixiCampus）Hangzhou310028 StateKeyLaboratoryofOrganometallicChemistry ShanghaiInstituteofOrganicChemistryChineseAcademyofSciencesShanghai200032.

Diacetates 1 and N-[(1-benzotriazol-l-yl)alkyl]amides 2, both masked forms of aldehydes, could undergo deprotection and condensation with cycloalkanones in a one-pot procedure promoted by samarium(III) iodide (SmI3) ... 详细信息

关键词： Samarium(III) triiodide,α,α'-bis(substituted benzylidene)cycloalkanone,1,1-diacetate N-[(l-benzotriazol-1-yl)alkyl]amide. Quinolone antibacterial agents have emerged as one of the dominant classes

Efficient Debromination of Vicinal a, b-Dibromo Carboxylic Acid Derivatives with the Sm/HOAc System

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Chinese Chemical Letters 2002年第6期13卷 499-500页

作者： XiaoXiaWANG yongminzhang DepartmentofChemistry，ZhejiangUniversity（XixiCampus） Hangzhou310028 StateKeyLaboratoryofOrganometallicChemistry ShanghaiInstituteofOrganicChemistryChineseAcademyofSciencesShangha

The ? ?vicinal dibromo carboxylic acid and its derivatives were debrominated with Sm/HOAc system to afford the corresponding cinnamic acid and its derivatives in good yields under mild conditions.

关键词： Debromination vicinal dibromides a b-unsaturated carboxylic acid derivatives Samarium.

One-Pot Reaction of Aldehydes,α-Haloketones and (Phenylsulfonyl)acetonitrile Promoted by SmI3

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Chinese Chemical Letters 2002年第4期13卷 285-286页

作者： XueSenFAN yongminzhang DepartmentofChemistry HenanNormalUniversityXinxiang453002 DepartmentofChemistry ZhejiangUniversityatXixiCampusHangzhou310028

One-pot reaction of aldehydes, ?haloketones and (phenylsulfonyl)acetonitrile promoted by SmI3 proceeded smoothly to give 1-cyano-1-phenylsulfonyl-2-aryl-3-aroyl-propane derivatives in moderate to good yields.

关键词： One-pot reaction sulfonyl group cyano group samarium (III) triiodide.

An Efficient Preparation of 2, 3-Disubstituted Indole Derivatives Induced by Low-valent Titanium

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Chinese Chemical Letters 2004年第5期15卷 518-520页

作者： XueSenFAN XinYingZHANG yongminzhang GuiRongQU SchoolofChemicalandEnvironmentalSciences KeyLaboratoryofEnvironmentalScienceandEngineeringforCollegesandUniversitiesofHenanProvinceHenanNormalUniversityXinxiang453002 DepartmentofChemistry ZhejiangUniversity（CampusXixi）Hangzhou310028

An efficient synthesis of 2, 3-disubstituted indole derivatives through low-valent titanium induced reductive cyclization of acylamido carbonyl compounds is described.

关键词： Indole derivatives low-valent titanium reductive cyclization process.

Facile Synthesis of Ureas in Ionic Liquid

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Chinese Chemical Letters 2004年第11期15卷 1269-1272页

作者： WeiXingQIAN FengYangJU yongminzhang WeiLiangBAO DepartmentofChemistry ZhejiangUniversity（CampusXixi）Hangzhou310028

The reaction of isocyanates with aliphatic and aromatic amines in the 1-n-butyl-3- methylimidazolium tetrafluoroborate (bmimBF4) ionic liquid in good to excellent yields is described. Due to its insolubility, the des... 详细信息

关键词： Ionic liquid isocyanates amines ureas.