无码毛片aaa在线,久久国产午夜精品理论片34页,国产毛片精品av一区二区,超碰国产天天做天天爽

 
Location:Home >>Product >>Intermediate

Methyltriphenylphosphonium bromide

Update time:2021/11/03 11:07:11  ???View:  
Triphenylmethylphosphonium bromide
Aliases: triphenylmethylphosphonium bromide, bromomethane triphenylphosphonium salt, methyl triphenylphosphonium bromide, triphenylmethylphosphonium bromide
CAS: 1779-49-3
Molecular formula: C19H18PBr
Main content ≥99%
Packing: 25KG cardboard drum
Properties: white powdery solid
Uses: used in organic synthesis; use Wittig reagents, used in the preparation of alkenes, to increase the carbon number of unsaturated carbon chains. The ylide precursor of the Wittig reaction is widely used in the synthesis of unsaturated bonds in liquid crystal materials; it is a good cationic phase transition catalyst; it is widely used in the methylene reaction by using the Wittig reaction and widely used in Chemicalbook; Wittig Alkylene salt, after ring-closing metathesis, is used to synthesize an enyne that can provide a benzoazepine heterocyclic system; Wittig olefinic salt, recently used to synthesize enynes, through ring-closing metathesis to generate a benzazepine ring system . It is widely used in methyleneization through Wittig reaction.
------分隔線----------------------------

Service Hotline:

You only need a phone call, we will serve you attentively

Consult now
Copyright © Shandong Zhengji Chemical Co., Ltd.  All Rights Reserved   Case Number :魯ICP備20007847號(hào)-4 chemBlink Premium Supplier
亚洲国产欧洲综合997久久| 少妇厨房愉情理伦片视频在线观看| 亚洲综合国产一区二区三区| 欧美日韩在线亚洲二区综二| 精品人妻人人做人人爽| 亚洲精品亚洲人成在线| 无码专区亚洲制服丝袜| 久久99精品久久久久久9蜜桃| 好吊视频一区二区三区| 中国亚洲呦女专区| 欧美孕妇变态孕交粗暴| 久久狠狠高潮亚洲精品| 国产美女被遭强高潮网站不再| 97精品人人妻人人| 精品国产99高清一区二区三区| 久久成人国产精品| 国产亚洲精品美女在线| 久久精品免费国产大片| 国产成人高清在线观看视频| 久久久成人毛片无码| 日本熟妇色熟妇在线视频播放| 欧美日韩精品久久久免费观看| 国产精品美女乱子伦高| 国产尤物在线视精品在亚洲| 国色天香成人网| 国内精品伊人久久久久av影院| 无码av最新清无码专区吞精| 午夜免费无码福利视频| 国产成人av无码精品天堂| 国产福利一区二区三区高清| 国产裸体美女视频全黄扒开| 97超碰国产精品无码分类| 亚洲成av人片在线观看wv| 又色又爽又高潮免费视频国产 | 亚洲欧美日韩在线资源观看| 曰本无码不卡高清av一二| 无码专区一ⅴa亚洲v专区在线| 欧美另类人妻制服丝袜| 久久综合精品国产一区二区三区无 | 国产情侣草莓视频在线| 国产精品久久亚洲不卡|