中国科技论文在线

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2009年07月23日

【期刊论文】Highly Enantioselective Allylation of Aldehydes Catalyzed by Indium(III)-PYBOX Complex

纪顺俊， Jun Lu， †， ‡ Shun-Jun Ji， *， ‡ Yong-Chua Teo， † and Teck-Peng Loh *， †， ‡

Org. Lett., Vol. 7, No. 1, 2005，-0001，（）：

-1年11月30日

A chiral indium(III)-PYBOX complex prepared from indium triflate and chiral PYBOX has been discovered to effect high enantioselectivities in the addition of allyltributyl stannane to aldehydes. The allylation of a variety of aromatic, r,

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2009年07月23日

【期刊论文】Ultrasound-promoted alkynylation of ethynylbenzene to ketones under solvent-free condition

纪顺俊， Shun-Jun Ji *， Zhi-Liang Shen， Da-Gong Gu， Xiao-Ying Huang

Ultrasonics Sonochemistry 12(2005)161-163，-0001，（）：

-1年11月30日

摘要

This paper described alkynylation of ethynylbenzene to ketones catalyzed by potassium tert-butoxide under solvent-free conditions in the presence of ultrasound irradiation.

Ethynylbenzene， Propargylic alcohol， Solvent-free， Ultrasound

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2009年07月23日

【期刊论文】An environmentally friendly procedure for Mukaiyama aldol and Mukaiyama–Michael reactions using a catalytic amount of DBU under solvent-and metal-free conditions

纪顺俊， Zhi-Liang Shen， a， b Shun-Jun Ji b， * and Teck-Peng Loh a， b， *

Tetrahedron Letters 46(2005)507-508，-0001，（）：

-1年11月30日

摘要

Mukaiyama aldol and Mukaiyama–Michael reactions can proceed smoothly in the presence of a catalytic amount of DBU (20% mmol), to afford the corresponding products in moderate to good yields. This solvent- and metal-free approach provides an environmentally friendly procedure for Mukaiyama reactions.

Mukaiyama reaction， DBU， Organic catalyst， Solvent-free condition， Metal-free.，

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2009年07月23日

【期刊论文】Enantioselective allylation of aldehydes catalyzed by chiral indium(III)complexes immobilized in ionic liquids*

纪顺俊， Jun Lu， ac Shun-Jun Ji *a and Teck-Peng Loh *ab

COMMUNICATION Chem. Commun., 2005, 2345-2347，-0001，（）：

-1年11月30日

摘要

In the presence of chiral catalytic complexes prepared from In(OTf)3 and chiral PYBOX ligands, allytributylstannane reacted with aldehydes in ionic liquids to afford the corresponding homoallylic alcohols in high enantioselectivities (86-94% ee) and good yields (68-89%); the chiral catalysts immobilized in ionic liquids could be reused with comparable enantioselectivities and yields.

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2009年07月23日

【期刊论文】Ionic liquid [omim][PF6] as an efficient and recyclable reaction media for the cyanosilylation of aldehydes without Lewis acid or any special activation

纪顺俊， Zhi-Liang Shen， b Shun-Jun Ji b， * and Teck Peng Loh a， b， *

Tetrahedron Letters 46(2005)3137-3139，-0001，（）：

-1年11月30日

摘要

Ionic liquid [omim][PF6] has been demonstrated as an efficient and environmentally friendly reaction media as well as a promoter for the cyanosilylation of aldehydes under mild conditions. In addition, the recovered ionic liquid could be reused for subsequent runs with only a gradual decrease in activity.

Ionic liquid， [omim][PF6]， TMSCN， Cyanosilylation， Cyanohydrins， Recycle.，

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