Something I joke about when introducing a new muffin recipe (not this one!) in my new cookbook out this fall is the gap between the muffins we gaze at in a coffee shop case and those we make at home. Why is one towering, glossy and plush and the ones I make for breakfast so… beige? I mean, I do know. When I’m the one baking the muffins, I balk at all of the refined sugar, flour, and oil needed to make them that pretty. So I stuff them with oats and dried fruit and whole-grain everything and then yes, they’re heavy and beige. But as I was staring at these beauties at my local bagel shop the other morning, I decided: enough.
The use of ammonia as a nitrogen source in catalytic asymmetric reactions is attractive but represents a difficult exercise. Now, the asymmetric synthesis of N-unprotected α-amino esters from α-diazoesters and ammonia is achieved by cooperative action of copper complexes and chiral hydrogen-bond donors.
Enlarge (credit: By Nilsf - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=23446041)
A recent toxicology analysis of the 500-year-old remains of two small children sacrificed in a ritual atop southern Peru’s Ampato volcano showed that the children’s hair and fingernails contained traces of cocaine, as well as two chemical compounds from a flowering vine that’s a key ingredient in the psychedelic beverage ayahuasca.
The compounds in question, harmine and harmaline, are both part of a group of antidepressants called MAOIs (monoamine oxidase inhibitors). The only possible place the Inca could have found these compounds is the flowering vine known to modern science as Banisteriopsis caapi—and to the Indigenous Quechua people as “liana of the dead.” Famously, the liana is one of the two main ingredients in a ritual drink called ayahuasca, which can induce hallucinations or an altered state of mind.
But the analysis found no trace of the compound DMT (N,N-Dimethyltryptamine), which makes ayahuasca such a powerful hallucinogenic. That compound comes from the other main ingredient in ayahuasca, a shrub called chacruna (which, incidentally, is a relative of the plant that gives us coffee).
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US Release Date: June 17, 2022 Starring: Emma Thompson, Daryl McCormack, Isabella Laughland Directed By: Sophie Hyde Synopsis: Retired widow Nancy Stokes hires a good-looking young sex worker, Leo Grande, in hopes of enjoying a night of pleasure and self-discovery after an unfulfilling married life.
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Energy Environ. Sci., 2022, Accepted Manuscript DOI: 10.1039/D2EE00483F, Paper
Di Lu, Xincheng Lei, Suting Weng, Ruhong Li, Jiedong Li, Ling Lv, Haikuo Zhang, Yiqiang Huang, Junbo Zhang, Shuoqing Zhang, Liwu Fan, Xuefeng Wang, Lixin Chen, Guanglei Cui, Dong Su, Xiulin Fan Conventional LiPF6/carbonate electrolyte with poor oxidative stability and reactive decomposition products (HF, PF5, POF3, etc.) dictates less-stable electrode/electrolyte interphases, which thereby promotes the dissolution of transition metal ions, accelerates constant... The content of this RSS Feed (c) The Royal Society of Chemistry
