Regioselective Acid -Catalyzed Cyclization Reaction: Unique Synthesis of Condensed Thiazoles and Selenazole
摘要:
The facile and regioselective synthesis of condensed thiazoles 7-11 and selenazole 12 has been performed by the catalytic action of H2SO4 on corresponding propynylthio 1-5 and propynylseleno 6 derivatives respectively.
The reactions of 2-aminothiazoles and 2-aminobenzothiazoles with propiolic acid and its esters
作者:D. W. Dunwell、D. Evans
DOI:10.1039/j39710002094
日期:——
The main products from the title reactions were 7H-thiazolo[3,2-a]pyrimidin-7-ones (IV) and 2H-pyrimido-[2,1-b]benzothiazol-2-ones (V). Treatment of some of these with primary and secondary aliphatic amines yielded 2-(β-aminoacryloyl)imino-Δ4-thiazolines (X) and the corresponding benzo-analogues (XI).
标题反应的主要产物是7 H-噻唑并[3,2 - a ]嘧啶-7-酮(IV)和2 H-嘧啶-[ 2,1- b ]苯并噻唑-2-酮(V)。其中一些的伯和仲脂族胺处理得到2-(β-aminoacryloyl)亚氨基Δ 4 -thiazolines(X)和相应的苯并类似物(XI)。
The Structure of Certain Polyazaindenes. II. The Product from Ethyl Acetoacetate and 3-Amino-1,2,4-triazole
作者:C. F. H. ALLEN、H. R. BEILFUSS、D. M. BURNESS、G. A. REYNOLDS、J. F. TINKER、J. A. VanALLAN
DOI:10.1021/jo01088a014
日期:1959.6
119. New syntheses of heterocyclic compounds. Part XII. The condensation of ethyl β-aminocrotonate with some cyclic amidines
作者:H. Antaki、V. Petrow
DOI:10.1039/jr9510000551
日期:——
Heravi; Montazeri; Rahimizadeh, Journal of Chemical Research - Part S, 2000, # 10, p. 464 - 465