PMB 1898 St
PMB can stand for: * Phenylmagnesium bromide, a reagent * p-Methoxybenzyl, in the benzyl group * Nickname of Pietermaritzburg, KwaZulu-Natal, South Africa * Picture Motion Browser, Sony software * PMB (software), a library system * Postmenopausal bleeding, a menstrual condition * Print Measurement Bureau, a Canadian media surveying company * Private Mail Bag, a service used by the US Postal Service * Pro-Música Brasil, record label body * Pierre-Marc Bouchard Pierre-Marc Bouchard (born April 27, 1984) is a Canadian former professional ice hockey player. Bouchard played his junior hockey with the Chicoutimi Saguenéens in the Quebec Major Junior Hockey League (QMJHL), and is the older brother of Austr ...

Phenylmagnesium Bromide
Phenylmagnesium bromide, with the simplified formula , is a magnesium-containing organometallic compound. It is commercially available as a solution in diethyl ether or tetrahydrofuran (THF). Phenylmagnesium bromide is a Grignard reagent. It is often used as a synthetic equivalent for the phenyl "Ph−" synthon. Preparation Phenylmagnesium bromide is commercially available as solutions of diethyl ether or THF. Laboratory preparation involves treating bromobenzene with magnesium metal, usually in the form of turnings. A small amount of iodine may be used to activate the magnesium to initiate the reaction. Coordinating solvents such as ether or THF, are required to solvate (complex) the magnesium(II) center. The solvent must be aprotic since alcohols and water contain an acidic proton and thus react with phenylmagnesium bromide to give benzene. Carbonyl-containing solvents, such as acetone and ethyl acetate, are also incompatible with the reagent. Structure Although phenylmagn ...
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