Intermolecular [2π+2σ]-photocycloaddition enabled by triplet energy transfer - Nature

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.For more than one century, photochemical [2+2]-cycloadditions have been used by synthetic chemists to make cyclobutanes, four-membered carbon-based rings.

Here, we report an intermolecular [2+2]-photocycloaddition which uses bicyclo[1.1.0]butanes as 2σ-electron reactants. This strain-release-driven [2π+2σ]-photocycloaddition reaction was realized by visible light-mediated triplet energy transfer catalysis. A simple, modular, and diastereoselective synthesis of bicyclo[2.1.1]hexanes from heterocyclic olefin coupling partners, namely coumarins, flavones and indoles, is disclosed.

Energy Energy Latest News, Energy Energy Headlines

Similar News:You can also read news stories similar to this one that we have collected from other news sources.

Germany clinches Qatar energy deal to reduce dependence on RussiaGermany and Qatar have reached a long-term energy partnership, a German official said on Sunday, as Europe's biggest economy seeks to become less dependent on Russian energy sources. Is Qatar a monarchy system? 👏👏👏 get rid off rusty gas! I thought Norway was closer.
Source: Reuters - 🏆 2. / 97 Read more »

CPS Energy blames dust and rain combination for power outagesCPS Energy blames dust and rain combination for power outages in San Antonio via expressnews
Source: ExpressNews - 🏆 519. / 51 Read more »

The Best Time To Do Higher-Intensity Workouts + An Energizing Routine To TryWith a nice balance of cardio and higher-rep strength training, this fast-paced circuit workout makes the most of the energy boost that comes with the ovulatory phase of your menstrual cycle. ⚡
Source: mindbodygreen - 🏆 296. / 63 Read more »