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1 vote
0 answers
36 views

Hydroboration, steroselectivity and anti-markovnikov product [duplicate]

My first question has to do with the fact that Hydroboration produces an anti-markovnikov product, why?. I don't see how that happens. A wikipedia artical says that B has a partial positive charge ...
bobbylee's user avatar
3 votes
1 answer
332 views

Stereoselectivity of Roush crotylboration

One can use a tartrate derived boronate to enact enantioselective crotyl transfer. Eg in scheme below: I do not understand how the stereoselectivity arises. We have a chiral boronate, true, and we ...
Swedish Architect's user avatar
2 votes
1 answer
4k views

What is the stereochemistry resulting from hydroboration of 1-methylcyclopentene?

What is the major product of the following reaction sequence? I'm supposed to work out the structures of both 2 and 3, but I already know 2 to be 1-methylcyclopentene (as the most substituted ...
john clastings's user avatar