73252-54-7Relevant articles and documents
Synthesis of polymethoxy-substituted triazolobenzoxazepines
Bukhvalova, S. Yu.,Ivanov,Malysheva, Yu. B.,Fedorov, A. Yu.
, p. 1481 - 1489 (2016/11/29)
A new approach has been proposed for the synthesis of polymethoxy-substituted [1,2,3]triazolo-[1,5-a][4,1]benzoxazepines starting from 2-bromo-4,5-dimethoxy- and 2-bromo-3,4,5-dimethoxybenzyl alcohols with thermal [3 + 2]-dipolar cycloaddition as the key stage.
Sequential one-pot method for oxy-Michael addition, Heck coupling, and degradation followed by condensation: Facile synthesis of 2-benzoxepin-3(1H)- ones Dedicated to the memory of my teacher Professor P.V. Subba Rao, Department of Chemistry, Andhra University, Visakhapatnam
Reddy, A. Gopi Krishna,Krishna,Satyanarayana
supporting information, p. 10098 - 10107 (2013/11/06)
A sequential one-pot intermolecular oxy-Michael addition, intermolecular Heck coupling, and intramolecular degradation (retro-oxy-Michael addition) followed by condensation method has been developed for the synthesis of interesting 2-benzoxepin-3(1H)-ones. Significantly, the 2-benzoxepin-3(1H)-ones form the core quantum of biologically vital natural products. The initial oxy-Michael addition and Heck coupling steps involve a straight forward construction of C-O and C-C bonds, whereas, the final condensation step follows a novel mechanistic path via intramolecular degradation, double bond isomerization, and intramolecular condensation. Notably, a remarkable solvent effect has been observed in-order to promote the final intramolecular condensation.
A novel anionic domino process for the synthesis of o-cyanoaryl-methylthio/ alkyl/aryl/heteroaryl acetylenes
Kumar, Sarvesh,Peruncheralathan, Saravanan,Ila, Hiriyakkanavar,Junjappa, Hiriyakkanavar
supporting information; experimental part, p. 965 - 968 (2009/04/10)
A novel unexpected anionic domino process involving n-BuLi-induced rearrangement of 3,3-bis(methylthio) or 3-methylthio-3-aryl heteroaryl. alkyl-o-bromoarylacrylonitriles to ocyanoarylacetylenes in synthetically useful yields has been reported. The scope and generality of the reaction has been examined, and a possible mechanism has been proposed.