Arsenic
Arsenic is widely used in some industrial and technological fields, especially in semiconductors, alloys, medicine and environmental protection. However, due to its high toxicity, the use and discharge of arsenic are strictly controlled. Long-term exposure to arsenic may cause serious effects on the human body and the environment. Therefore, effective protective measures must be taken when using arsenic and its compounds.
Technical Resources
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Catalytic asymmetric Friedel–Crafts alkylation of unprotected indoles with nitroalkenes using a novel chiralChiral chloro-indeno pybox has served as a new ligand for the Yb(OTf)3-catalyzed asymmetric Friedel–Crafts alkylation reaction of indoles with nitroalkenes. The tunable nature of pybox ligands
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2Catalytic asymmetric Friedel–Crafts alkylation of unprotected indoles with nitroalkenes using a novel chiral
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3Catalytic asymmetric Friedel–Crafts alkylation of unprotected indoles with nitroalkenes using a novel chiral
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4Catalytic asymmetric Friedel–Crafts alkylation of unprotected indoles with nitroalkenes using a novel chiral
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5Catalytic asymmetric Friedel–Crafts alkylation of unprotected indoles with nitroalkenes using a novel chiral