An efficient semipinacol rearrangement undergoing 1,2-migration toward α,β-unsaturated ketones via a synergistic Lewis acid and base cocatalysis strategy is developed, providing a direct and efficient ...

Efficient polyoxometalate (POM)-based Lewis acid–base catalysts of the rare-earth-metal-containing POMs (TBA6RE-POM, RE = Y3+, Nd3+, Eu3+, Gd3+, Tb3+, or Dy3+) were designed and synthesized by ...

An acid (from the Latin acidus/acēre meaning sour) is a substance which reacts with a base. Commonly, acids can be identified as tasting sour, reacting with metals such as calcium, and bases like ...

Lewis acids and their compleses with Lewis bases -- Lewis acid-promoted ene reaction -- Lewis acid-promoted allysilanes and allystannanes addition to aldehydes and ketones -- Lewis acid-promoted ...

Dr. Hartman says he often recommends this pick from La Roche-Posay to his patients. He appreciates the 100% mineral formula ...

Matter and Energy -- Measurement and the Metric System -- Metric Prefixes -- Scientific Notation -- Volume and Density -- Reporting Measured Quantities -- Solving Problems by the Factor-Label Method - ...

In this video I am doing an acrylic pouring bloom technique! The process: I am working on two different sized canvases and pouring the acrylic in different areas and directions to find the shapes that ...

These are the best colour correcting and SPF-enriched CC creams. Makeup artist Rose Gallagher breaks down all there is to know and the difference between a BB cream.

Using base entry logs and surveillance video, investigators determined that Fields and Frakes had entered Lewis-McChord together about an hour before the attack, investigators said.

Finding the perfect foundation is no small feat. As a beauty editor, I’ve tried hundreds – if not thousands – of formulas ...