Expeditious synthesis of chiral 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazines
摘要:
An expeditious one-pot two-step synthesis of chiral 4-substituted-6-methyl-1,2-dihydropyrrolo[1,2-a]pyrazin-3(4H)-ones via reaction between 5-methyl furfurylamine and N-Boc amino acids is described. LiAlH4-mediated reduction of 4-substituted-6-methyl-1,2-dihydropyrrolo[1,2-a]pyrazin-3(4H)-ones affords respective chiral 1,2,3,4-tetrahydropyrrolo[1,2-c]pyrazines in excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
Furan ring opening–pyrrole ring closure. A simple route to 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-3-ones
作者:Igor V. Trushkov、Tatyana A. Nevolina、Vitaly A. Shcherbinin、Lyudmila N. Sorotskaya、Alexander V. Butin
DOI:10.1016/j.tetlet.2013.05.066
日期:2013.7
We report here an application of a furan ring opening-Paal–Knorr pyrrole synthesis sequence for the transformation of furfurylamines into 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-3-ones.
我们在这里报告了呋喃开环-Paal-Knorr吡咯合成序列在将糠胺转化为1,2,3,4-四氢吡咯并[1,2 - a ]吡嗪-3-酮中的应用。
Stetter, Hermann; Lappe, Peter, Liebigs Annalen der Chemie, 1980, # 5, p. 703 - 714
作者:Stetter, Hermann、Lappe, Peter
DOI:——
日期:——
STETTER H.; LAPPE P., LIEBIGS ANN. CHEM., 1980, NO 5, 703-714
作者:STETTER H.、 LAPPE P.
DOI:——
日期:——
Expeditious synthesis of chiral 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazines
作者:Subhendu Bhowmik、Anil K.S. Kumar、Sanjay Batra
DOI:10.1016/j.tetlet.2013.02.067
日期:2013.5
An expeditious one-pot two-step synthesis of chiral 4-substituted-6-methyl-1,2-dihydropyrrolo[1,2-a]pyrazin-3(4H)-ones via reaction between 5-methyl furfurylamine and N-Boc amino acids is described. LiAlH4-mediated reduction of 4-substituted-6-methyl-1,2-dihydropyrrolo[1,2-a]pyrazin-3(4H)-ones affords respective chiral 1,2,3,4-tetrahydropyrrolo[1,2-c]pyrazines in excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.