Facile preparation of N-protected 2-alkylidene-1,3-imidazolidines
摘要:
Stereoselective preparation of unsymmetrically protected 2-alkylidene-1,3-imidazolidines was achieved by the reaction of N,N'-protected ethylenediamine, bromopropynamide, and K(3)PO(4) in hot DMF. When N-protected aminoethanol was used in place of the protected ethylenediamine, an oxazolidine derivative was produced. (C) 2008 Elsevier Ltd. All rights reserved.
Facile preparation of N-protected 2-alkylidene-1,3-imidazolidines
作者:Hiroyuki Naito、Takeshi Hata、Hirokazu Urabe
DOI:10.1016/j.tetlet.2008.02.006
日期:2008.3
Stereoselective preparation of unsymmetrically protected 2-alkylidene-1,3-imidazolidines was achieved by the reaction of N,N'-protected ethylenediamine, bromopropynamide, and K(3)PO(4) in hot DMF. When N-protected aminoethanol was used in place of the protected ethylenediamine, an oxazolidine derivative was produced. (C) 2008 Elsevier Ltd. All rights reserved.