Oxidative cyclization of 5-aryl-1-benzyl-1,2,3-triazoles bearing electron-rich aromatic groups: ortho/ortho and ortho/ipso coupling
Sign Up to like & getrecommendations! Published in 2021 at "Chemistry of Heterocyclic Compounds"
DOI: 10.1007/s10593-021-02985-5
Abstract: The intramolecular oxidative coupling of electron-rich aromatic groups in 5-(het)aryl-1-(het)arylalkyl-1H-1,2,3-triazoles was studied in detail. Under treatment with phenyliodoso bis(trifluoroacetate) and boron trifluoride etherate these substrates afforded products of either ortho/ortho or ortho/ipso coupling depending on… read more here.
Keywords: electron rich; ortho ortho; ortho; aromatic groups ... See more keywords
Zncl2@MWCNTs nanocomposite as an efficient and reusable catalyst for direct regioselective ortho C-acylation of phenolic compounds under solvent-free and microwave conditions
Sign Up to like & getrecommendations! Published in 2017 at "Green Chemistry Letters and Reviews"
DOI: 10.1080/17518253.2017.1349194
Abstract: ABSTRACT In this research, the ortho C-acylation of some phenol and naphthol derivatives was catalyzed by ZnCl2, supported on multi-walled carbon nanotubes as a new nanocomposite Lewis acid catalyst. The reaction was performed under solvent-free… read more here.
Keywords: acylation; ortho; free microwave; catalyst ... See more keywords
Chemical tracers in proto-brown dwarfs: CO, ortho-H2CO, para-H2CO, HCO+, CS observations
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DOI: 10.1093/mnras/sty3111
Abstract: We present a study of the CO isotopologues and the high-density tracers H$_{2}$CO, HCO$^{+}$, and CS in Class 0/I proto-brown dwarfs (proto-BDs). We have used the IRAM 30m telescope to observe the $^{12}$CO (2-1), $^{13}$CO… read more here.
Keywords: h2co; ortho; proto; hco ... See more keywords
Rotational Barriers in N-Benzhydrylformamides: An NMR and DFT Study
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DOI: 10.3390/molecules28020535
Abstract: N-Benzhydrylformamides are pharmacologically active compounds with anticonvulsant, enzyme-inducing, antihypoxic, and other types of biological activity. The conformational behavior of benzhydrylformamides is determined to a great extent by the presence of substituents at the nitrogen atom… read more here.
Keywords: bhfa nme; ortho; rotational barriers; formyl ... See more keywords