An Atom‐Economical Approach to 2‐Aryloxypyridines and 2, 2′/2, 3′‐Diaryloxybipyridines via Ruthenium‐Catalyzed [2+2+2] Cycloadditions. Issue 18 (30th July 2019)

• Record Type: Journal Article
• Authors: Kalaramna, Pratibha; Bhatt, Divya; Sharma, Himanshu; Goswami, Avijit
• Is Part Of: Advanced synthesis & catalysis. Volume 361:Issue 18(2019)
• Page Start: 4379
• Page End: 4385
• Publication Date: 2019-07-30
• Subjects: 2-aryloxypyridines -- 2, 2′- & 2, 3′-diaryloxy bipyridines -- ruthenium catalyst -- [2+2+2] cycloaddition -- solvent-free; Catalysis -- Periodicals; Organic compounds -- Synthesis -- Periodicals; Chemistry -- Periodicals; Chemistry, Technical -- Periodicals; Chemistry -- Periodicals; Catalysis -- Periodicals; Technology, Pharmaceutical -- Periodicals; 547.2
• DOI: 10.1002/adsc.201900553
• Languages: English
• ISSNs: 1615-4150

Abstract

Abstract: An efficient, ruthenium(II)‐catalyzed, solvent‐free approach for the synthesis of 2‐aryloxypyridines with good to excellent yields has been developed by the reaction of 1, 6‐diynes with aryl cyanates. This atom‐economical catalytic strategy offers a mild and practical approach to access a variety of such cycloadducts with excellent regioselectivities. The protocol was further extended to the synthesis of 2, 2′‐ and 2, 3′‐diaryloxybipyridines by the reaction of tetraynes with aryl cyanates. Abstract :