Direct coupling of aryl halides and alkyllithium compounds by palladium catalysis — ScienceDaily

Palladium catalysts help synthesize key chemicals for many industries. However, direct reaction of two basic reagents, aryl halides and alkyllithium compounds, remains a challenge. Now, a team of scientists have found that a catalyst containing YPhos-type ligands can mediate this reaction even at room temperature. This discovery may contribute to the development of more sustainable processes in the chemical industry, the authors write in the journal Angewandte Chemie.

Palladium-catalyzed chemical processes are very useful. Palladium catalysts help to couple simple carbon-containing compounds to form more complicated chemical structures. However, they have yet failed to couple two common reagents in chemical synthesis, aryl halides and alkyllithium compounds. Among the aryl halides, aryl chlorides are common synthesis reagents that react variably during palladium-catalyzed reactions to produce side products.

For coupling reactions with aryl halides and alkyllithium compounds, chemists usually take “detours” by adding intermediate synthesis steps. Unfortunately, every extra synthesis step

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Go Direct Weather System provides a versatile and affordable way for educators to engage students

Vernier recently launched the new Go Direct® Weather System to engage students in hands-on data collection as they learn important environmental science concepts. This affordable wireless sensor can be used in the classroom or out in the field to help middle school, high school, and college-level students investigate and analyze a variety of environmental factors.

“This new sensor for environmental science provides an affordable way for STEM educators to engage their students in data collection as they explore the science of natural phenomena,” said John Wheeler, CEO of Vernier Software & Technology. “The Go Direct Weather System is notable because students can collect and analyze multiple types of environmental data using just one compact system.”

The two-part Go Direct Weather System consists of the Go Direct Weather sensor and the Go Direct Weather Vane. The handheld weather sensor is used to collect data around ambient temperature, humidity, wind speed, wind

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Measurements in thorium-229 take a step towards the direct laser excitation of an atomic nucleus in this unique isotope — ScienceDaily

Nuclear clocks could make our time measurement even more accurate than atomic clocks. The key to this lies in thorium-229, an atomic nucleus whose lowest excited state has very low energy. A research team from the Kirchhoff Institute for Physics at the University of Heidelberg, TU Wien, Johannes Gutenberg University Mainz (JGU), the Helmholtz Institute Mainz (HIM), and GSI Helmholtzzentrum in Darmstadt has now succeeded in measuring this low energy. Using an extremely accurate detector, it was possible to detect the tiny temperature increase due to the energy released during the de-excitation of the atomic nucleus. This brings the realization of a nuclear clock a big step closer.

In radioactive decay, atomic nuclei spontaneously re-arrange, eject some part of their building blocks, and transform into a nucleus of a different atom. In this process, the new “daughter atom” usually has internally stored energy that is released in the form of

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Emails: Palantir blames Morgan Stanley for ‘blemished’ direct listing

  • In two emails sent internally this weekend, Palantir Technologies blamed Morgan Stanley for a “failure” that left some employee and alumni shareholders unable to sell their shares when the company made its public debut last Wednesday.
  • The problem stemmed from a glitch with Morgan Stanley’s trading platform Shareworks.
  • In an unsigned email sent late in the evening Sunday, Palantir said it had heard from Morgan Stanley that the bank was in a “war room” all weekend working to determine which shareholders were owed compensation. 
  • A spokesperson for Shareworks at Morgan Stanley said the issue was a “slowness” that “may have resulted in delayed logins into our system.”
  • Visit Business Insider’s homepage for more stories.

Palantir placed blame squarely on Morgan Stanley following a glitch in the bank’s trading software Shareworks on Wednesday, according two unsigned emails sent to “Palantirians” on Saturday and Sunday, which were obtained by Business Insider.

That

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NetworkNewsBreaks – Blue Hat Interactive Entertainment Technology (NASDAQ: BHAT) Achieves Direct Increase in Sales Through Live-Event Content

The MarketWatch News Department was not involved in the creation of this content.

Sep 23, 2020 (NetworkNewsWire via COMTEX) —
Blue Hat Interactive Entertainment Technology (NASDAQ: BHAT), a leading producer, developer and operator of augmented reality (“AR”) interactive entertainment games, toys and educational materials in China, today announced solid initial results from the direct-to-consumer (“DTC”) partnership with Xiamen Xing Meng Wei Lai Culture Media Co. LTD (” Xing Meng Wei Lai “). Xing Meng Wei Lai is a leading Chinese multi-channel network and internet content development agency that specializes in building DTC social content marketing through live streaming and short videos. After the two-month implementation period, Blue Hat held several live shows displaying its interactive software and products, attracting an aggregate total audience of over 50,000 consumers. “We have placed a renewed focus on leveraging new technologies and mobile purchasing trends to strengthen Blue Hat’s marketing initiatives. To date, we

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