[Johte]

Feel free to response to either or bother.

I want to add an nBuLi-A intermediate drop-wise to to B. How do I keep my -70 nBuLi mix stirring whilst drawing with the cannula?

I need the most readily available method to activate a terminal alkane. End game is azido functionality on a n-alkyl ( 5-7) primary amines.

[discodermolide]

You can buy an insulated canula from Aldrich. Otherwise you can wrap yours with aluminium foil.
Sorry don't follow B you have a 5-7 n-alkyl with primary amines on the alkyl?

[Johte]

I wasn't even considering having to insulate the cannula. The question was about how to draw from my intermediate flask whilst stirring. I imagine I can't stir and have the cannula at the bottom of the r.b.f. to draw all of said intermediate.

My apologies on the second question. The n-alkylamine is not the B in question. This is a separate experiment being planned. I thought it not proper to make two posts simultaneously.