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2.
Org Lett ; 16(21): 5728-31, 2014 Nov 07.
Article in English | MEDLINE | ID: mdl-25343314

ABSTRACT

A p-TsOH-mediated 1,3-dipolar cycloaddition of nitroolefins and sodium azide for the synthesis of 4-aryl-NH-1,2,3-triazoles has been developed. p-TsOH was discovered as a vital additive in this type of 1,3-dipolar cycloaddition. This novel cycloaddition reaction is a good method for the rapid synthesis of valuable 4-aryl-NH-1,2,3-triazoles in high yields.


Subject(s)
Benzenesulfonates/chemistry , Nitro Compounds/chemistry , Triazoles/chemistry , Triazoles/chemical synthesis , Catalysis , Cycloaddition Reaction , Molecular Structure
3.
Org Lett ; 16(12): 3292-5, 2014 Jun 20.
Article in English | MEDLINE | ID: mdl-24897584

ABSTRACT

A facile benzoyl peroxide (BPO) mediated ortho-hydroxylation and benzoylation of N-alkyl anilines for the synthesis of 2-benzamidophenols has been developed. The reaction tolerates a wide range of functional groups and is a good method for the straightforward synthesis of valuable 2-benzamidophenols in good yields under mild conditions.


Subject(s)
Aniline Compounds/chemistry , Benzoyl Peroxide/chemistry , Phenols/chemical synthesis , Hydroxylation , Molecular Structure , Phenols/chemistry
4.
Chem Commun (Camb) ; 49(74): 8196-8, 2013 Sep 25.
Article in English | MEDLINE | ID: mdl-23925205

ABSTRACT

A novel and efficient method for the oxidation of 2-arylindoles to synthesize 2-arylbenzoxazinones utilizing oxone as the sole oxidant has been developed. The reaction tolerates a wide range of functional groups and allows quick and atom-economical assembly of a variety of valuable 2-arylbenzoxazinones in high yields.


Subject(s)
Benzoxazines/chemical synthesis , Indoles/chemistry , Oxidants/chemistry , Sulfuric Acids/chemistry , Benzoxazines/chemistry , Molecular Structure , Oxidation-Reduction
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