VERFAHREN ZUR HERSTELLUNG VON ALKALIMETALLSALZEN DER 2-PYRROLIDON-5-CARBONSAEURE.
摘要
Prepn. of alkali metal salts of L-2-pyrrolidone-5-carboxylic acid of formula (I) in which M is an alkali metal, comprises condensn. and cyclisation of alkali metal L-glutamates by heating at temps. between the m.pt. and about 270 deg.C removing water formed in the intramolecular condensn.
申请公布号
DE3869314(D1)
申请公布日期
1992.04.23
申请号
DE19883869314
申请日期
1988.09.08
申请人
DEGUSSA AG, 6000 FRANKFURT, DE
发明人
DRAUZ, DR., KARLHEINZ, W-6463 FREIGERICHT 1, DE;KRIMMER, DR., HANS-PETER, W-6000 FRANKFURT AM MAIN 60, DE;REMMEL, HANS, W-6463 FREIGERICHT 3, DE
