annulation

英式音标：[ænjʊ'leɪʃən]播放读音

美式音标：[ænjʊ'leɪʃən]播放读音

词义：

n.

环状物；

用法：

权威例句

A proline-catalyzed asymmetric Robinson annulation reaction

Ruthenium‐Catalyzed Oxidative Annulation by Cleavage of CH/NH Bonds

Synthesis of α-pyrones via palladium-catalyzed annulation of internal alkynes

An expedient phosphine-catalyzed [4 + 2] annulation: synthesis of highly functionalized tetrahydropyridines

Synthesis of 2,3-Disubstituted Indoles via Palladium-Catalyzed Annulation of Internal Alkynes

An enantiodirected cyclopentenone annulation. Synthesis of a useful building block for condensed cyclopentanoid natural products

Synthesis of Isocoumarins and alpha-Pyrones via Palladium-Catalyzed Annulation of Internal Alkynes.

ChemInform Abstract: AN ENANTIODIRECTED CYCLOPENTENONE ANNULATION. SYNTHESIS OF A USEFUL BUILDING BLOCK FOR CONDENSED CYCLOPENTANOID...

ChemInform Abstract: Synthesis of 2,3‐Disubstituted Indoles via Palladium‐Catalyzed Annulation of Internal Alkynes

ChemInform Abstract: Enantioselective Mukaiyama-Aldol and Aldol-Dihydropyrone Annulation Reactions Catalyzed by a Tryptophan-Derived...

造句：

1. They bought all their equipment from a defunct brewery in Manhattan.

他们那些设备都是从曼哈顿一家已经关闭的啤酒厂购买的。

来自柯林斯例句

2. The scheme for building an airport seems to be completely defunct now.

建造新机场的计划看来整个完蛋了.

来自《简明英汉词典》

3. Most of the time of the defunct had been passed in helping himself.

死者生前大部分时间都是用来造福自己.

来自辞典例句

4. A family name becomes defunct when the only heir dies any son.

当唯一的继承人死去了之后没儿子,那这个姓就要绝迹了.

来自互联网

5. My November submission for the now defunct Monthly Character Exchange.

为了网上人物交换画展(现以停办)画的礼物?二零零零年十一月版.

来自互联网

[ defunct 造句 ]