organic chemistry

[organichelpmepls]

Indicated the hybridisation state of all the non-hydrogen atoms in the following molecules,

CH3COCH2OCH3 and HCCCN

i can't really seem to understand my chemistry teacher, and i really need to pass this coursework to get into university, all help is very much appreciated

[rktpro]

Hybridisation is not something which you can solve as a problem yourself and find it out. Try google or a good textbook to learn chemical bonding. In organic books, it is usually the first chapter.

[organichelpmepls]

Okay, how about this question, draw the structures of the products that you would obtain by treatment of benzaldehyde :

 

a) MeMgCl, followed by H30+

b) NaBH4

[Fuzzwood]

Read your course book. Clearly grignard and reduction agents must have been discussed.

[organichelpmepls]

I am doing a foundation course which is a mixture of a-levels and 1st year university chemistry, there is no textbook or coursework book, and i feel like I'm struggling with it. i've been googling and googling for hours, with no answers.

[organichelpmepls]

alright i found for NaBH4, but no luck with MeMgCl and H3O+, anyone know the answer?

[organichelpmepls]

anyoneeeee

[Fuzzwood]

What happened after searching for those keywords I gave?

[rktpro]

Even if you solve 1000 problems by google search or asking someone, without reading theory, you wouldn't gain much. Try a good textbook, something like Morrison and Boyd and then tackle problems.

[organichelpmepls]

so basically benzaldehyde is a aldehyde and MeMgCl is a grignard agent?

reading it off this website , http://www.organic-chemistry.org/namedreactions/grignard-reaction.shtm

[hypervalent_iodine]

so basically benzaldehyde is a aldehyde and MeMgCl is a grignard agent?

reading it off this website , http://www.organic-chemistry.org/namedreactions/grignard-reaction.shtm

 

Yes.

 

I mean no offense by this, but if you didn't even know that benzaldehyde was an aldehyde then I think it would be in your best interest to read up on some basic organic chemistry before you start going through reactions.

[organichelpmepls]

i did know that benzaldehyde was an aldehyde.. but i still can't figure out the product of it when treated with MeMgCl and H3O+

[hypervalent_iodine]

Grignard reactions typically have an acid work up step if that's the part that's confusing you. The product will still be what you would expect from a Grignard reaction.

[Elite Engineer]

i did know that benzaldehyde was an aldehyde.. but i still can't figure out the product of it when treated with MeMgCl and H3O+

Grignard reagents in short produce carbanions, which you may or may not know are negatively charged or nucleophilic. The carbon on the aldehyde group is positive due to oxygen's high electronegativity; oxygen literally pulls electrons from carbon making it less negative and more positive or electrophilic. Now you have a positive carbon and a negative carbon...what do you think will happen when they interact?

 

~ee