use
Vinyl magnesium bromide is used as a nucleophile in organic synthesis to react with aldehydes, ketones, esters and epoxides to introduce vinyl into the substrate molecule. It is one of the most commonly used members of the vinyl Grignard reagent because vinyl bromine has a higher boiling point than vinyl chloride and is easier to handle. Nucleophilic reactions of vinyl magnesium bromide with aldehydes and ketones can be carried out under very mild conditions, generally giving high-yielding allyl alcohol compounds (Formula 1~
Formula 3). When encountering ketones that are prone to enolization, adding CeCl3 can prevent enolization and obtain satisfactory results. In the presence of cuprous salt catalyst, vinylmagnesium bromide reacts with olefin conjugated carbonyl compounds to produce 1, 4-addition products. CuBr.Me2S complex is a more commonly used catalyst (
Formula 4). In the presence of cuprous salt catalyst, halides can be directly vinylated by vinyl magnesium bromide.
Formula 5). The halides connected by vinyl magnesium bromide and sp2 hybrid carbon atoms undergo a C-C coupling reaction catalyzed by palladium or nickel to form arylvinyl products or 1, 3-diene products.
Formula 6). Vinyl magnesium bromide is also often used as a precursor compound in the preparation of other metals, especially organotin compounds.
Formula 7).
What is the way you ship?
Express: FedEx, UPS, EMS, DHL, USPS, TNT, DPD, Aramex etc
Our way of shipping the products is universal and secure.
The company name and other contents related to pharmacy are not written on the package slips.
The way of packing is regularly changed for a secure delivery.
The packages are small in order to avoid unwelcomed questions . If the order is big, then it will be divided into two or more packages
Can the packages be trackable?
YES, we provide tracking number and you can track on internet.
Do you offer domestic shipping/remail shipping?
Yes we can ship to USA/UK/Canada/Australia/Germany etc warehouse first then to you.
Do you ensure your packing , what about customs, what happens if the package is retained?
We concern a lot about our safety system, we pack the orders as secure as possible. If a package is seized at customs, reships of seized orders will be done provided you have a copy of the letter to show us. If you receive a seizure letter, please contact us immediately with a scanned copy of the seizure letter, and also a new address to have your order reshipped to.
Which payment options are available?
Western Union
Bank wire
MoneyGramFAQ
Where do you ship to?
Worldwide.
China
