1826-15-9Relevant articles and documents
Programmed synthesis of arylthiazoles through sequential C-H couplings
Tani, Satoshi,Uehara, Takahiro N.,Yamaguchi, Junichiro,Itami, Kenichiro
, p. 123 - 135 (2014/01/06)
A programmed synthesis of privileged arylthiazoles via sequential C-H couplings catalyzed by palladium or nickel catalysts has been accomplished. This versatile protocol can supply all possible arylthiazole substitution patterns (2-aryl, 4-aryl, 5-aryl, 2
An easy access to 4,5-disubstituted thiazoles via base-induced click reaction of active methylene isocyanides with methyl dithiocarboxylates
Lingaraju, Gejjalagere S.,Swaroop, Toreshettahally R.,Vinayaka, Ajjampura C.,Sharath Kumar, Kothanahally S.,Sadashiva, Marilinganadoddi P.,Rangappa, Kanchugarakoppal S.
experimental part, p. 1373 - 1379 (2012/06/30)
An efficient synthesis of 4,5-disubstituted thiazoles via base-induced cyclization of active methylene isocyanides such as tosylmethyl isocyanide, ethyl isocyanoacetate, and arylmethyl isocyanides with methyl arene- and hetarenecarbodithioates is reported
N-H Insertion reactions of rhodium carbenoids. Part 5: A convenient route to 1,3-azoles
Davies, James R.,Kane, Peter D.,Moody, Christopher J.
, p. 3967 - 3977 (2007/10/03)
Dirhodium(II) carboxylate catalysed reaction of diazocarbonyl compounds 2 in the presence of primary amides 1 results in the formation of α-acylaminoketones 3 (12 examples) by N-H insertion reaction of the intermediate rhodium carbene. The 1,4-dicarbonyl
Mechanism of Base-catalysed Hydrogen-Deuterium Exchange in Thiazolium Ion: Evidence for the Involvement of a Tetrahedral Intermediate
Karimian, Khashayar,Mohtarami, Fatemeh,Askari, Massoud
, p. 1538 - 1543 (2007/10/02)
The mechanism of base-catalysed hydrogen-deuterium exchange of 2-H in the thiazolium ion has been examined by 1H n.m.r. spectroscopy, using small and sterically hindered nucleophiles.Rapid H-D exchange is observed in Me2SO in the cases of 3,4,5-trimethyl- (1), 3-methyl-4,5-diphenyl- (2), 3,5-dimethyl-4-phenyl- (3), and 3,4-dimethyl-5-phenyl-thiazolium iodide (4), when small nucleophiles (KOD-D2O or KOCD3-DOCD3; 0.016M; 25 deg C) are employed.Utilization of a hindered nucleophile however results in a slow exhange of 2-H in (1), (3), and (4), concomitant with H-D exchange of the 4- and 5-methyl exchange of 2-H is detected in the case of (2) with the hindered nucleophile.These observations are ascribed to the formation of a tetrahedral intermediate as a prerequisite of the exchange reaction.