Arenes and alkenes share the presence of C(sp2)–H bonds of similar bond dissociation energy, yet their reactivity differs fundamentally. Arenes undergo electrophilic substitution because of aromatic stabilization, for example, in Friedel–Crafts alkylation. By contrast, alkenes react by electrophilic addition (Fig. 1a), which prevents analogous substitution chemistry, so there is no alkene analogue to Friedel–Crafts alkylation,…
new video loaded: North London Stabbing Is Being Treated as Terrorism, Police Say transcript Back transcript North London Stabbing Is Being Treated as Terrorism, Police Say Two men were stabbed in north London on Wednesday, in an area that is home to just over half of Britain’s 300,000 Jewish residents. The city’s main police force…
The Federal Reserve kept interest rates steady Wednesday as President Trump’s new pick to lead the bank inched closer to confirmation. By a vote of 8 to 4, the Federal Open Market Committee (FOMC) decided to maintain its baseline interest rate range between 3.5 and 3.75 percent at the end of what will likely be Jerome Powell’s final meeting as Fed chair.  Hours…
I’m probably biased as a Floridian, but in my opinion, there’s no better wedding venue than a beach. There’s a stunning built-in backdrop of the horizon, breezes that bring the drama, and the serene sounds of waves ebbing and flowing. But the setting does present some challenges, like wearing the right shoes to traverse sand…
Since joining in 2017, Salah has won two Premier League titles, the Champions League, Fifa Club World Cup, Uefa Super Cup, FA Cup and two EFL Cups, as well as the Community Shield, in an iconic career. Only Ian Rush (346) and Roger Hunt (285) have scored more goals for Liverpool and the way he…
Open Uber’s app and you’ll see options to hail a car, order some food, or go grocery shopping. And starting today, you’ll see something new: hotels. In a major expansion into the world of travel accommodations, Uber says that it’s adding the ability to book and pay for a hotel room to its app. The…
Post-war reconstruction and efforts to diversify production will present big opportunities Source link
Study sponsorship, authorizations and ethics This study was an investigator initiated trial sponsored by Gustave Roussy and covered by a Biomedical Research Promoter Civil Liability insurance contract (contract 124.895) in accordance with the provisions of the French law (Decree 2006-477 of 26 April 2006 and Article L.1121-10 of the French Public Health Code). This study…
Authorities referred to a Whatsapp group chat called Revolution of the Brave Citizens as evidence of their alleged plans, said to include power cuts, attempting to incite security forces to rebel against the government, and mobilising young people to create unrest. Source link
California’s political landscape is heating up with the race for governor, the fight for control of the U.S. House of Representatives, and the potential presidential race in 2028, with Gov. Gavin Newsom and former Vice President Kamala Harris as leading contenders. Source link