title: Ru(ii)-Catalyzed C-H activation and annulation of salicylaldehydes with monosubstituted and disubstituted alkynes.
abstract: The Ru(ii)-catalyzed C-H activation and annulation reaction of salicylaldehydes and disubstituted alkynes affords chromones in high yields. This reaction also works with terminal alkynes and tolerates a wide range of sensitive functional groups. The selectivity pattern of this Ru(ii)-catalyzed annulation reaction is different from the known Au(i), Rh(iii)-catalyzed annulation reactions of salicylaldehydes and terminal alkynes.
authors.affiliation: Applied Organic Chemistry, Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, AcSIR, Jorhat-785006, India. skgogoi1@gmail.com.
authors.forename: Swagata
authors.initials: S
authors.lastname: Baruah
authors.affiliation: Applied Organic Chemistry, Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, AcSIR, Jorhat-785006, India. skgogoi1@gmail.com.
authors.forename: Partha Pratim
authors.identifier: http://orcid.org/0000-0002-6808-4955
authors.initials: PP
authors.lastname: Kaishap
authors.affiliation: Applied Organic Chemistry, Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, AcSIR, Jorhat-785006, India. skgogoi1@gmail.com.
authors.forename: Sanjib
authors.initials: S
authors.lastname: Gogoi