Stable Vitamin K 3 is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以煙酰胺、鹽酸為原料一级黄色视频无码A片，在 2 5℃反應(yīng)得煙酰胺鹽酸鹽溶液，而后與亞硫酸氫鈉甲萘醌發(fā)生加成反應(yīng)，反應(yīng)的物料配比為：n ∶ n ∶ n =1∶1嫖妓精品老司机在线观看。

This paper studied addition reaction of a -pinene with alcoholunder microwave irradiation.

在較好的工藝條件下，主產(chǎn)物甲酸松油酯的得率為60.4％直接播放的毛片网站，選擇性為64.5％影音先锋亚洲综合资源在线观看。

Michael addition reaction between poly and propyl vinyl sulfoxide was studied in sodium hydroxide aqueous solution.

本文研究聚乙烯醇與丙基乙烯基亞砜經(jīng)Michael 加成反應(yīng)合成含亞砜基的改性聚乙烯醇功能高分子。

The optimum conditions to synthesizeβ-carboxyethyl organogermanium sesquioxide were established through orthogonal test: the time from beginning to adding sodium hypophosphite was 0.5h; the molar ratio of germanium dioxide, hydrochloric acid and sodium hypophosphite was 1:7.4:1.4; addition reaction time was 1.5h.

用正交試驗確定了最佳工藝條件：從反應(yīng)開始到加次亞磷酸鈉的間隔時間0.5h一级A片免费91；n：n：n=1 ： 7.4 ： 1.418禁毛片永久免费观看；加成反應(yīng)時間1.5h。

Michael addition reaction must be carried out in the base of the catalyst, the alkali used are: sodium, sodium ethoxide, sodium hydride, sodium amide ...

邁克爾加成反應(yīng)必須在堿的催化下進行久久八视频，常用的堿有：金屬鈉a片视频看一区、乙醇鈉、氫化鈉偷拍性爱网站、氨基鈉开心激情自拍。。超碰国产人人操。

On the basis of computational energetic results at CCSD/6-311-H-G//MP2/6-311-H-G** plus zero point energy correction level of theory the addition reaction channel on the singlet surface dominates over the H-abstraction channel on both singlet and triplet surfaces.

分析整個反應(yīng)體系的勢能面欧美AAAAAA黄片，總結(jié)出單重態(tài)的C_2與H_2O的加成反應(yīng)較單重態(tài)和叁重態(tài)的奪氫反應(yīng)容易，是主要反應(yīng)通道亚州激情小说，生成CCOH_2A片一次十回一级片。

KF/NaZnPO4 was used as the catalyst for Michael addition reaction of ethyl acetoacetate and acrylonitrile.

以磷酸鋅鈉負載KF為催化劑，催化乙酰乙酸乙酯與丙烯腈進行Michael 加成反應(yīng)最新国产精品久久精品。

The known titanoheterocyclic compound〓 was synthesized in high yield by a new route involving an oxidative addition reaction of "titanocene"with benzil, and its structure was first confirmed by a single crystal X-ray diffraction method.

首次由&二茂鈦&與二苯乙二酮的氧化加成反應(yīng)起青草公开免费视频，高產(chǎn)率地合成了一個已知的高價鈦雜環(huán)化合物〓黄网站在线观看免费播放，并首次用X-射線衍射法測得該化合物的單晶分子結(jié)構(gòu)。

Stable Vitamin K 3 is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以煙酰胺五月花av、鹽酸為原料曰本三级片网站，在 2 5℃反應(yīng)得煙酰胺鹽酸鹽溶液，而后與亞硫酸氫鈉甲萘醌發(fā)生加成反應(yīng)人狠人人操人人A级片，反應(yīng)的物料配比為：n ∶ n ∶ n =1∶1.2 ∶1.2 5 免费毛片视频网址，得到穩(wěn)定的復合維生素K3 ，收率 95 %免费看看a的网站。

In the presence of chloroplatinic acid, can easily occur with the addition reaction of vinyl compounds.

在氯鉑酸存在下成年高清视频在线看免费观看，極易與烯類化合物發(fā)生加成反應(yīng)。