Lactam acetals : Part XXIV reaction with activated haloalkyl compounds with and without zinc
摘要:
Reaction of 2-alkoxyimmonium methosulfates (2), and of lactam acetals (3) derived therefrom, with alpha-haloesters in presence of zinc (Reformatsky condition) yielded N-alkyl-2-(alpha-alkyl-alpha-alkoxy-carbonyl)methylene-1-azacycloalkanes (6), while reaction of 3 with alpha-haloesters without zinc gave 3-alkoxycarbonylmethyl-1-azacycloalkane-2-one (5). Similar reaction of; 2 and 3 with 4-bromomethylquinolin-2-one (4) in presence of zinc gave N-alkyl-2-[4-(2-oxoquinolyl)methylene]-1-azacycloalkanes (7), a key intermediate for the synthesis of antimalarial quinoline-4-methanols.
Gouesnard, Jean-Paul, Bulletin de la Societe Chimique de France, 1988, # 1, p. 132 - 138
作者:Gouesnard, Jean-Paul
DOI:——
日期:——
Ring Chain Transformations. XII [1] Synthesis of N-(3-Aminothioacryloyl)lactam Imines and their Transformation to 4-(?-Amino-alkyl)thiazoles or N-(Thien-2-yl)lactam Imines
作者:Michael P�tzel、Alexander Knoll、Thomas Steinke、Michael von L�wis、J�rgen Liebscher
DOI:10.1002/prac.19933350712
日期:——
Mavrin, V. Yu.; Moskva, V. V.; Apal'kova, T. N., Journal of general chemistry of the USSR, 1988, vol. 58, # 7, p. 1488 - 1489
作者:Mavrin, V. Yu.、Moskva, V. V.、Apal'kova, T. N.
DOI:——
日期:——
Jain Sanjay, Jain Rahul, Singh Jujhar, Anand Nitya, Tetrahedron Lett, 35 (1994) N 18, S 2951-2954