The simple sugars （monosaccharides0 are basically aliphatic polyhydroxy aldehydes and ketones: HOCH2- n-CHO and HOCH2- n-1-C-O-Ch2OH, called "aldoses" and "ketoses," re ectively.

單糖本質(zhì)上是脂族的多羥基醛和酮久久国产国产精品，即HOCH2-2-CHO和HOCH2-n-1-C：O-CH2OH94人人操人人操人人看，分別稱為醛糖和酮糖色狼av窝电影。

In all these components, the kinds and the contents of aromatic hydro-carbon, aldehydes, alkyls and alkenes increased significantly.

此外精品视频在线，對(duì)于軍隊(duì)国产福利91精品一区二区、登山日韩人成精品视频免费播放在线、探險(xiǎn)、航海等特殊行業(yè)日韩快播自拍图片在线观看网站，就更需要一種貯存時(shí)間長6080午夜久草，且品質(zhì)有保證的方便主食面包。

The main constituents of this oil were aldehydes(31.15%),terpene and their oxide(20.66%),alkyls(8.35%),Furan heterocyclic compounds(6.41%),non terpene alcohol(4.26%).

知母揮發(fā)油的化學(xué)成分主要為：醛類(31.15%)美女奶头无遮挡网站视频免费观看、萜類及其氧化物(20.66%)欧美熟妇被草、烷烴及其含氧取代物(8.35%)、呋喃雜環(huán)化合物(6.41%)亚洲欧美黑人性暴力猛交群、非萜醇類(4.26%)人人操人人看人操。

It showed that the yeast KD had higher fermentation capacity, gentle fermentation speed, and the produced kiwi fruit wine was clear and transparent with light yellow color and typical kiwi fruit aroma and wine-alcohol bouquet. Furthermore, the produced kiwi fruit wine had high alcohol content to 10.5 %vol, high vitamin C content to 0.94 g/L and low content of reducing sugar, total acid and volatility acid. 48 aroma substances in total were identified including esters (19 kinds, 34.65 %), higher alcohols(5 kinds,15.38 %), fatty acids(6 kinds,13.30 %), and micro-content of alkyls, aldehydes and ketones, which accounted for 97.33 % of total peak area. Such yeast was suitable for kiwi fruit wine brewing. Tran. by YUE Yang

結(jié)果表明，酵母KD的單位酵母發(fā)酵力較高国产精品美女视频一区二区，發(fā)酵速度平緩91KCM国产在线精品，所釀獼猴桃酒澄清、透明女生的奶罩(黄片)，色澤淺黃久久久夜色精品国产热热，酒體醇和爽口，具有獼猴桃果香和純正的酒香看无码国产毛片视频直播，典型性強(qiáng)香蕉高清影视一级在线观看；酒度達(dá)10.5 %vol，Vc含量為0.94 g/L超碰人人妻人人妻，殘?zhí)敲夥鸦频氖悠低尽⒖偹岷蛽]發(fā)酸含量均較低免费看国产黄色A片精品；共鑒定出48種香氣物質(zhì)一级黄片一级黄片一级黄片黄片，占總峰面積的97.33 %，其中人人揉人人操人人草，酯類物質(zhì)達(dá)19種日韩精品网站日韩在线观看视频免费，相對(duì)含量為34.65 %，高級(jí)醇(5種，15.38 %)和脂肪酸（6種国产一级a免费无码视频，13.30 %）含量少A片在线一区看，烷烴類和醛酮類等香氣物質(zhì)種類豐富，酒體協(xié)調(diào)www欧美系列、飽滿人人看人人射人人操，是1株適宜獼猴桃酒釀造的優(yōu)良酵母。

Herein we mainly discuss the asymmetric addition of terminal alkynes to aldehydes and ketones using commercially available chiral pool and their derivatives.

這篇論文論述了商業(yè)化的手性源及其衍生物配體催化的末端炔對(duì)醛和酮的不對(duì)稱加成反應(yīng)的研究国产福利最新地址发布页8010。

Chapter 6: The analogue of the Squalamine's intermediate was synthesized from desoxycholic acid by using asymmetric addition of alkynes to the aldehydes (ee up to 99%) as key step.

第六章：利用炔對(duì)醛的不對(duì)稱加成反應(yīng)為工具欧美日大黄片，我們從方便易得的原料豬膽酸出發(fā)，對(duì)甾體化合物的側(cè)鏈進(jìn)行了改造免费黄色a片大全，合成了Squalamine的中間體類似物国产91精品宾馆。

The asymmetric addition of terminal alkynes to aldehydes and ketones is an important method of synthesizing chiral propartyl alcohols and tertiary alcohols, which are important pharmaceutical intermediates.

末端炔對(duì)醛和酮的不對(duì)稱加成是合成光學(xué)純的炔丙醇和手性叔醇的重要方法，是不對(duì)稱催化的重要研究課題之一国产黄片精品在线。

For the first time,our group found that lanthanide amides can initiate the Cannizarro disproportionation reaction of aromatic aldehydes.

我們小組首次發(fā)現(xiàn)了通過稀土胺基化合物引發(fā)芳香醛發(fā)生Cannizzaro-型歧化反應(yīng)国产原创精品在线，生成相應(yīng)的酰胺和醇。

A facile one-step method waspresented for the synthesis of N-fluoroalkanesulfonyl amidines 〓 inmoderate to good yield from the reaction of azides, ketones or aldehydes, andsecondary amines at room temperature.

在和無官能團(tuán)取代的烯胺化合物的反應(yīng)中www.人妻一级黄四色AV日韩AV，它發(fā)生了烷基遷移過程一级A片福利片，而且利用該反應(yīng)我們實(shí)現(xiàn)了由酮或醛，二級(jí)胺和疊氮一鍋法合成脒類化合物〓国产综合久偷自。

The best results 98% ee, 94% ee and 59% ee were obtained in silylcyanation of aldehydes, borane reduction of prochiral ketones and ketimines, respectively.

醛的硅氰化反應(yīng)ee值最高達(dá)到98%国产精品黄黄久久久免费看视频，酮的硼烷還原反應(yīng)ee值達(dá)94%，而亞胺的硼烷還原反應(yīng)ee值只有59%A片网站在线免费观看。