Fluoroalkanosulfonyl fluorides-mediated cyclodehydration of β-hydroxy sulfonamides and β-hydroxy thioamides to the corresponding aziridines and thiazolines
摘要:
An efficient method for the fluoroalkanosulfonyl fluoride-induced cyclodehydration of beta-hydroxy sulfonamides and beta-hydroxy thioamides to the corresponding aziridines and thiazolines is reported. Mild reaction conditions, operational simplicity, and high yields are the major advantages of this method. (c) 2013 Elsevier Ltd. All rights reserved.
Sulfur-containing Heterocycles Derived by Reaction of N-Thioacylamino Alcohols with Lawesson’s Reagent and Saponification of N-Thioacylamino Esters
作者:Takehiko Nishio、Hiroshi Sekiguchi
DOI:10.3987/com-02-s(m)9
日期:——
The treatment of 2-N-thioacylamino alcohols (1) with Lawesson's reagent [LR: 2,4-bis(p-methoxyphenyl)-1,3,2,4-dithiaphosphetane 2,4-disulfide] afforded the sulfur-containing heterocycles, 1,3-thiazolines (2) in moderate to good yields, exclusively. The saponification of N-thioacylamino esters (4), which were prepared by the thionation of N-acylamino esters (3) with LR, with K2CO3 gave 3,1-benezothiazines (5) and 3,1-benzoxazines (6).
ROBBE, Y.;FERNANDEZ, J. -P.;CHAPAT, J. -P.;SENTENAC-ROUMANOU, H.;FATOME, +, EUR. J. MED. CHEM., 1985, 20, N 1, 16-24
作者:ROBBE, Y.、FERNANDEZ, J. -P.、CHAPAT, J. -P.、SENTENAC-ROUMANOU, H.、FATOME, +
DOI:——
日期:——
Robbe; Fernandez; Chapat, European Journal of Medicinal Chemistry, 1985, vol. 20, # 1, p. 16 - 24
作者:Robbe、Fernandez、Chapat、et al.
DOI:——
日期:——
Fluoroalkanosulfonyl fluorides-mediated cyclodehydration of β-hydroxy sulfonamides and β-hydroxy thioamides to the corresponding aziridines and thiazolines
An efficient method for the fluoroalkanosulfonyl fluoride-induced cyclodehydration of beta-hydroxy sulfonamides and beta-hydroxy thioamides to the corresponding aziridines and thiazolines is reported. Mild reaction conditions, operational simplicity, and high yields are the major advantages of this method. (c) 2013 Elsevier Ltd. All rights reserved.