申请人:BASF Aktiengesellschaft
公开号:US05750469A1
公开(公告)日:1998-05-12
Substituted lactic acid derivatives having an N-organic radical in the .beta.-position, of the formula I ##STR1## where substituents R to R.sup.5, X and Y have the meanings mentioned in the description and N is one of the radicals: a) --N.sub.3, --NC, --NCS or --NCO b) ##STR2## where R.sup.14 and R.sup.15 have the meanings described in the description c) ##STR3## in which R.sup.16 is hydrogen, alkyl, haloalkyl, alkenyl, alkynyl, cycloalkyl or unsubstituted or substituted phenyl; and B is a group ##STR4## OR.sup.19 or --NR.sup.14 R.sup.15, where R.sup.14, R.sup.15, R.sup.17 and R.sup.19 have the meanings described in the description, or ##STR5## where R.sup.14 and R.sup.15.sub.1, have the abovementioned meanings; or ##STR6## where R.sup.20 and R.sup.21, which can be identical or different, are: hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl or phenyl, where the organic radicals can in each case be substituted; or R.sup.20 and R.sup.21 together form an unsubstituted or substituted C.sub.4 -C.sub.7 -alkylene chain which is closed to give a ring or together form an unsubstituted or substituted C.sub.3 -C.sub.6 -alkylene chain which is closed to give a ring and has a heteroatom selected from the group consisting of oxygen, sulfur and nitrogen are described.
具有β-位置上有N-有机基团的乳酸衍生物,其化学式为I,其中取代基R至R.sup.5,X和Y在描述中提到的含义,N是以下基团之一:a)-N.sub.3,-NC,-NCS或-NCO b)##STR2##其中R.sup.14和R.sup.15具有描述中所述的含义c)##STR3##其中R.sup.16是氢,烷基,卤代烷基,烯基,炔基,环烷基或未取代或取代的苯基;B是一个基团##STR4##OR.sup.19或-NR.sup.14R.sup.15,其中R.sup.14,R.sup.15,R.sup.17和R.sup.19具有描述中所述的含义,或##STR5##其中R.sup.14和R.sup.15.sub.1具有上述含义;或##STR6##其中R.sup.20和R.sup.21可以相同或不同,是氢,烷基,烯基,炔基,环烷基或苯基,其中有机基团在每种情况下均可取代;或R.sup.20和R.sup.21一起形成未取代或取代的C.sub.4-C.sub.7-烷基链,闭合形成环,或者一起形成未取代或取代的C.sub.3-C.sub.6-烷基链,闭合形成环,并具有从氧,硫和氮组成的杂原子。