orgo roadmap #2

[Albuterol]

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in orgo roadmap #2 of destroyer...shouldnt the Br2/hv reaction all the way in the bottom left corner add onto the CH3 molecule since it is the least substituted and also in a terminal position yielding Ar-CH2CH2Br...what am I missing here? thanks!

 

[osimsDDS]

in orgo roadmap #2 of destroyer...shouldnt the Br2/hv reaction all the way in the bottom left corner add onto the CH3 molecule since it is the least substituted and also in a terminal position yielding Ar-CH2CH2Br...what am I missing here? thanks!

yea this is an exception to anti-mark rule with radicals...Br2/hv will take off the benzyllic hydrogen and add there...Also another exception to anti-mark is HCl and ROOR, that adds mark because Cl is too strong to add anti-mark...

 

[Albuterol]

you are the man! thanks alot!!

 

[PooyaH]

yea this is an exception to anti-mark rule with radicals...Br2/hv will take off the benzyllic hydrogen and add there...Also another exception to anti-mark is HCl and ROOR, that adds mark because Cl is too strong to add anti-mark...

👍 btw, is it true that Cl/CCl4 results in trans whereas Br2/CCl4 results in Syn addition!? Why is that!?

 

[osimsDDS]

👍 btw, is it true that Cl/CCl4 results in trans whereas Br2/CCl4 results in Syn addition!? Why is that!?

i have no idea about that pooyah, open a new thread i would like to know more...