The modified-Mannich reaction: Conversion of arylboronic acids and subsequent coupling with paraformaldehyde and amines toward the one-pot synthesis of Mannich bases and benzoxazines
作者:Juan Liu、Gaoqing Yuan
DOI:10.1016/j.tetlet.2017.02.081
日期:2017.4
A modified Mannichreaction has been developed for the synthesis of Mannichbases and benzoxazines via the oxidative hydroxylation of arylboronic acids and subsequent coupling with paraformaldehyde and amines in one pot. This modified Mannichreaction is easily carried out to afford the target products in good to excellent yields and tolerates a variety of functional groups.
A Modified Mannich-Type Reaction Catalyzed by VO(acac)<sub>2</sub>
作者:Der-Ren Hwang、Biing-Jiun Uang
DOI:10.1021/ol017229j
日期:2002.2.1
A facile VO(acac)(2)-catalyzed in situ generation of iminium ions from amine N-oxides and their participation in a modified Mannich-type reaction is described.
TASHIRO, MASASHI;SAEKI, KATSUNORI;TSUZUKI, HIROHISA;MATAKA, SHUNTARO;HATT+, KYUSYU DAJGAKU KINO BUSSITSU KAGAKU KEHNKYUDZE XOKOKU, 2,(1988) N, S. 79-+