No-gi Intermediate
Tony Tolbert sets up the ankle pick from a collar tie by circling until the far foot steps, then breaking the shoulder down and taking the arm over the leg.
Takedowns
Collar Tie
Cupping the back of the opponent's head and neck to control posture and set up snap-downs and ankle picks.
Also called collar tie, neck tie, head tie.
Where it shows up
Related techniques
Shorts
Gi & no-gi Intermediate
Eli Knight counters Russian ties and 2-on-1 arm ties from standing.
How to hand fight for #wrestling and #BJJ - Clearing Collar Ties #wrestlingtakedowns #judolife 
Systematic Wrestling YouTube
Four ways to clear a collar tie - elbow pass, rip, thumb post and taking the underhook - so you can get to the legs. Short and dense, aimed at no-gi and wrestling.
YouTube videos
John Danaher - Fastest Way to Become Effective in Standing Position
Bernardo Faria BJJ Fanatics YouTube
Danaher on getting effective on the feet quickly: stance, grips and the takedowns that actually appear in BJJ.
Gi Beginner
Three gi takedowns off the same cross-collar grips, a white-belt standing package from Chewjitsu.