ADVERTISEMENT
4 /5 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Synthesis

Chemistry in Pictures: Homer’s donut

by Craig Bettenhausen
September 14, 2018

 

LN-Homerdonut.JPG

Robert Pipal works on cross-coupling methods—reactions that fuse two molecules--in David MacMillan’s lab at Princeton University. When isolating the product of a reductive amination between an amine and an aldehyde, he placed the pink, oily substance under high vacuum to remove the last traces of solvent. “The pink oil surrounding the round bottom flask kind of exploded into a pink donut,” he says. Next up? Figure out why it’s pink. “I believe the light pink color is due to a colored trace impurity, but I’m not exactly sure what the impurity is.”

Credit: Robert Pipal/@MacMillan_Lab


Do science. Take pictures. Win money. Enter our photo contest here.


Related C&EN Content:

Chemistry in Pictures: So pure it pops

Strong, aliphatic C–H bonds succumb to direct arylation

Photoswitchable drugs could light the way to more targeted treatments

.

X

Article:

This article has been sent to the following recipient:

Leave A Comment

*Required to comment