Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking ...

A new three-way bond-breaking and making mechanism makes the synthesis of five-membered rings easier than before.

Chemists at UCLA are showing that some of organic chemistry’s most famous “rules” aren’t as unbreakable as once thought. By ...

For roughly a century, organic chemistry students have been taught to treat Bredt’s rule like a hard stop sign. If a double bond sits at the bridgehead of a small, rigid bicyclic molecule, the ...

The 2025 Winter Meetings in Orlando unofficially wrapped up Wednesday afternoon with the annual Rule 5 Draft. The Rule 5 Draft gives minor leaguers who are not top prospects a big-league opportunity ...

The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are rotating in sync with the filament. When you purchase through links on our ...

This is read by an automated voice. Please report any issues or inconsistencies here. VATICAN CITY — A married couple who had been fired from the Vatican bank for violating an internal rule barring ...

Trump said the long-standing rule should be killed to end the shutdown. As the government shutdown nears becoming the longest in U.S. history, President Donald Trump has called on Senate Republicans ...

An archaeologist is piecing together what the V-shaped stone structures—some stretching 500 feet long—were used for. Two chacu hunting traps are seen from the air. The V-shaped hunting traps were used ...

Israeli strike kills Al Jazeera journalists, Democrats respond to Trump's D.C. takeover, and more Length: Long Speed: 1.0x To take control of the police force of Washington, D.C., President Donald ...