[dorratz]

Hello

I have a question about this catalytic Hydrogenation of Alkenes


Does anyone can give me another example where there will be a trans product because of steric hinderence? I couldn't find one in the book / internet.

Thanks
Dor

[dorratz]

Hey

I got a question about this:


Why don't I get two products?

My answer is :

so in my opinion the products are diastereomers.

Thanks
Dor

[AWK]

There are no chiral centre in 2-methylpentane.

[dorratz]

Yepp, damn right. I was too tired to see it.

Thanks
Dor

[orgopete]

I cannot think of any way of inserting a palladium, platinum, or nickel catalyst into the more hindered side. If one wished to get the trans product from alpha-pinene knowing that the top face is sterically hindered, then I'd try a radical addition of HBr or just add bromine. For HBr, I'd expect the hydrogen to add from the least hindered side. The reductive hydrobromination would give the trans-pinane.

[dorratz]

Thanks a lot.