俄罗斯兽交黑人又大又粗水汪汪-肥白大屁股bbwbbwhd-粉嫩大学生无套内射无码卡视频-粉嫩高中生无码视频在线观看-粉嫩极品国产在线观看-粉嫩萝控精品福利网站

 
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-4 chemBlink Premium Supplier
主站蜘蛛池模板: 精品人妻无码一区二区三区手机板 | 成年美女黄网站18禁免费 | 天堂中文在线资源 | 久久国产精品最新一区 | 欧美激情一区二区亚洲专区 | 欧美巨大xxxx做受孕妇视频 | 国产精品久久久久久久久久久久午衣片 | 国产一区二区三区在线视频 | 日本在线观看不卡 | 国产精品一区二区av麻豆 | 欧洲亚洲日韩性无码专区 | 国产国产乱老熟女视频网站97 | 日韩顶级片 | 97人妻熟女成人免费视频 | 午夜无码片在线观看影院 | 五月伊人网 | 亚洲国产成人精品无码区在线观看 | 久久久久久久91精品免费观看 | 国产99久9在线视频 国产99久久精品一区二区 | 99久久精品免费看国产高清 | 亚洲 欧美 日韩在线一区 | 九色综合久久综合欧美97 | 精品福利视频网站 | 久久久久久自慰出白浆 | 亚洲精品精华液一区二区 | 香港三级日本三级澳门三级人 | 超碰cao已满18进入离开官网 | 亚洲av无码一区二区三区四区 | 国产一区二区三区久久精品 | 午夜精品久久久久久久第一页 | 欧美性教育一区三区免费视频 | 人人澡人人澡人人看添欧美 | 国产手机免费视频 | 日韩成人黄色 | A片人人澡C片人人人妻付费 | 天天操夜夜做 | 日本精品无码一区二区三区久久久 | 天天摸天天碰 | 人人看操 | 色噜噜狠狠色综合欧洲 | 成人性毛片 |