5467-22-1Relevant academic research and scientific papers
Gold(I)-catalyzed double migration cascades toward (1E,3E)-dienes and naphthalenes
Dudnik, Alexander S.,Schwier, Todd,Gevorgyan, Vladimir
experimental part, p. 1859 - 1870 (2009/07/04)
A novel gold(I)-catalyzed cascade cycloisomerization of a variety of propargylic esters leading to unsymmetrically substituted naphthalenes has been developed. This domino process involves an unprecedented tandem sequence of 1,3- and 1,2-migrations of two
Gold-catalyzed double migration-benzannulation cascade toward naphthalenes
Dudnik, Alexander S.,Schwier, Todd,Gevorgyan, Vladimir
supporting information; experimental part, p. 1465 - 1468 (2009/04/10)
(Chemical Equation Presented) A novel gold(I)-catalyzed cycloisomerization of propargylic esters leading to unsymmetrically substituted naphthalenes has been developed. This cascade reaction involves an unprecedented tandem sequence of 1,3- and 1,2-migration of two different migrating groups. It is believed that this transformation likely proceeds via the formation of 1,3-diene intermediate or its precursor, which upon cyclization and aromatization steps transforms into the naphthalene core. 2008 American Chemical Society.
Efficient esterification of carboxylic acids and phosphonic acids with trialkyl orthoacetate in ionic liquid
Yoshino, Tomonori,Imori, Satomi,Togo, Hideo
, p. 1309 - 1317 (2007/10/03)
An operationally simple, inexpensive, efficient, and environmentally friendly esterification of various carboxylic acids, phosphonic acids, and phosphinic acids with triethyl orthoacetate or trimethyl orthoacetate under neutral conditions in a typical room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate, was successfully carried out to provide the corresponding ethyl esters or methyl esters in high yields.
Environmentally friendly esterification of carboxylic acids with triethyl orthoacetate in ionic liquid
Yoshino, Tomonori,Togo, Hideo
, p. 1604 - 1606 (2007/10/03)
An operationally simple, inexpensive, efficient, and environmentally friendly esterification of carboxylic acids with triethyl orthoacetate under neutral conditions in a typical room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate, was carried out to provide the corresponding ethyl esters in high yields.
