Skip to main content

PERIODICITY

Post a Comment

REACTION OF ALDEHYDES AND KETONES WITH GRIGNARD REAGENTS

Do Grignard reagents react with aldehydes and ketones? What happens when aldehyde reacts with Grignard reagent? How does Grignard reagent react with ketone? How are alcohols prepared from aldehydes and ketones with Grignard reagent? REACTION OF ALDEHYDES AND KETONES WITH GRIGNARD REAGENTS


Comments

Post a Comment

Popular posts from this blog

PROPERTIES OF THE PERIOD 3 CHLORIDES

This page looks at the structures of the chlorides of the Period 3 elements (sodium to sulphur), their physical properties and their reactions with water. Chlorine and argon are omitted - chlorine because it is meaningless to talk about "chlorine chloride", and argon because it doesn't form a chloride. A quick summary of the trends The chlorides The chlorides we'll be looking at are: NaCl MgCl 2 AlCl 3 SiCl 4 PCl 5 S 2 Cl 2 PCl 3 There are three chlorides of sulphur, but the only one mentioned by any of the UK-based syllabuses (A level or its equivalents) is S 2 Cl 2 . As you will see later, aluminium chloride exists in some circumstances as a dimer, Al 2 Cl 6 . The structures Sodium chloride and magnesium chloride are ionic and consist of giant ionic lattices at room temperature Aluminium...
Post a Comment
Read more

ALKENES and POTASSIUM MANGANATE(VII)

This page looks at the reaction of the carbon-carbon double bond in alkenes such as ethene with potassium manganate(VII) solution (potassium permanganate solution). Oxidation of alkenes with cold dilute potassium manganate(VII) solution Experimental details Alkenes react with potassium manganate(VII) solution in the cold. The colour change depends on whether the potassium manganate(VII) is used under acidic or alkaline conditions. If the potassium manganate(VII) solution is acidified with dilute sulphuric acid, the purple solution becomes colourless. If the potassium manganate(VII) solution is made slightly alkaline (often by adding sodium carbonate solution), the purple solution first becomes dark green and then produces a dark brown precipitate. Chemistry of the reaction We'll look at the reaction with ethene. Other alkenes react in just the same way. Manganate(VII) ions are a strong oxidising agent, and in the first i...
Post a Comment
Read more