Metallocene catalyzed synthesis of fungistatic vicinal aminoalcohols under solvent free conditions
摘要:
Group 4 and 5 metallocenes, Cp2TiCl2, Cp2ZrCl2 and Cp2VCl2, have been evaluated as catalyst in the solvent free, room temperature, preparation of vicinal aminoalcohols. The regioselectivity of the reaction and the fungistatic activity of the prepared compounds against Botrytis cinerea and Colletotrichum gloeosporioides are discussed. (C) 2010 Elsevier Ltd. All rights reserved.
Disclosed is a compound which is useful in preventing and treating cardiac arrhythmia such as atrial fibrillation. A compound represented by formula (1) or a pharmaceutically acceptable salt of the same.
In formula (1), ring X represents benzene or pyridine; R
1
represents an optionally substituted alkyl group; R
2
represents an optionally substituted aryl group, an optionally substituted heterocyclic group, an optionally substituted arylalkyl group or an optionally substituted heterocyclic group-substituted alkyl group; R
3
, R
4
, R
5
, R
6
, R
7
, R
8
and R
9
represent each hydrogen or an alkyl group, provided that R
3
and R
5
may be bonded to each other to form, together with the carbon atom adjacent thereto, a cycloalkyl group; and m represents 0 or 1.
A copper-catalyzed reaction of 3-diazoindolin-2-imines with 2-(phenylamino)ethanols: convenient access to spiro[indoline-3,2′-oxazolidin]-2-imines
作者:Guorong Sheng、Shicong Ma、Songlin Bai、Jianming Mao、Ping Lu、Yanguang Wang
DOI:10.1039/c7cc09488d
日期:——
3-Diazoindolin-2-imines reacted with chiral 2-(phenylamino)ethanols under copper catalysis to furnish chiral spiro[indoline-3,2′-oxazolidin]-2-imines in good yields with excellent diastereoselectivity.