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1)  α,β-unsaturated
α,β-不饱和醛酮
1.
In this paper, we discussed electronic effect of nucleophilic additions to α,β- unsaturated aldehydes and ketones by means of the perturbation theory.
运用微扰理论讨论了α,β-不饱和醛酮亲核加成反应的电子效应。
2)  α,β-unsaturated aldehydes / ketones
α,β-不饱和醛/酮
1.
Progress on homogeneous and heterogeneous catalysts of MPV reduction of α,β-unsaturated aldehydes / ketones,synthesis method of the catalyst and its catalytic mechanism are reviewed.
叙述了以醇为氢源,应用MPV反应选择性还原α,β-不饱和醛/酮为α,β-不饱和醇的过程中使用的均相、多相催化剂及其制备方法、催化机理的研究进展。
3)  α,β-unsaturated ketone(aldehyde)
α,β-不饱和酮(醛)
4)  α,β-unsaturated aldehydes
α,β-不饱和醛
1.
Hydrogenation of α,β-unsaturated aldehydes is an important process to give various products.
α,β-不饱和醛经加氢还原可以得到饱和醛、不饱和醇以及饱和醇等多种产物。
5)  α,β-Unsaturated aldehyde
α,β-不饱和醛
1.
Application of the above gold catalysts in liquid-phase selective hydrogenation of some unsaturated compounds including unsaturated hydrocarbon,α,β-unsaturated aldehydes/ketones and nitro group compounds was summarized.
对Au催化剂在不饱和烃、α,β-不饱和醛/酮、硝基化合物等不饱和化合物液相选择性加氢反应中的应用进行了述评,介绍了氢分子在Au催化剂表面的吸附机理及各类不饱和化合物在Au催化剂表面的加氢反应历程,对如何开展Au加氢催化剂的研究提出了建议,如高性能Au催化剂的制备方法研究、Au催化作用机理研究及如何提高Au催化剂的稳定性等。
6)  α,β-unsaturated ketones
α,β-不饱和酮
1.
Thia-michael addition of thiol equivalents to α,β-unsaturated ketones under solvent-free conditions;
无溶剂条件下代硫醇试剂与α,β-不饱和酮的迈克尔加成反应
2.
It was reviewed the research progress on the chemistry of α,β-unsaturated ketones.
详细地对α,β-不饱和酮化学进行了综述。
补充资料:2α,17α-Diethinyl-A-nor-5α-androstane-2β,17β-diol
分子式:C22H30O2
分子量:326.48
CAS号:52-74-4

性质:产品为结晶化合物。

制备方法:可用3β-乙酰氧基雄甾-5-烯-17-酮经催化氢化、水解,生成3β-羟基雄甾烷-17-酮,然后以铬酸氧化开环(A)、环合得A-失碳雄甾烷-2,17-二酮,最后以乙炔炔化制得该品。

用途:双炔失碳丙酯的中间体。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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