PROCESS FOR PRODUCING 1-SUBSTITUTED TRANS-4-(SUBSTITUTED AMINO) PIPERIDIN-3-OL
申请人:Aikawa Toshiaki
公开号:US20110172431A1
公开(公告)日:2011-07-14
A process is provided for producing a 1-substituted trans-4-(substituted amino)piperidin-3-ol represented by formula (III-1):
The process includes a step of reacting a 1-substituted-3,4-epoxypiperidine represented by formula (I):
with an amine compound represented by formula (II)
in the presence of an inorganic lithium salt. By utilizing the process, trans-4-aminopiperidin-3-ol compounds useful as various chemical products, such as medicine intermediates, can be produced.
Composition, notamment cosmétique, comprenant une amine secondaire ou tertiaire
申请人:L'OREAL
公开号:EP1420008A1
公开(公告)日:2004-05-19
La présente invention concerne de nouvelles amines secondaires ou tertiaires de formule (I) :
ainsi qu'une composition, adaptée à une application topique sur la peau, comprenant au moins une telle amine dans un milieu physiologiquement acceptable.
Elle concerne également l'utilisation d'une telle amine dans une composition adaptée à une application topique sur la peau, comme agent destiné à lisser les rides et ridules, en particulier les rides et ridules d'expression.
An organolithium compound represented by the following general formula (i): (i) [wherein A represents a heteroatom selected among oxygen, nitrogen, sulfur, and phosphorus; Ar represents optionally substituted aryl; R1 represents C1-10 alkyl; R2 represents C1-10 alkylene; R3 represents C1-10 alkyl or a protective group for the functional group -A-H (A is a heteroatom); and when the heteroatom A is oxygen or sulfur, then m and n each is 0 or 1, provided that the sum of m and n is 1, and when the heteroatom A is nitrogen or phosphorus, then m and n each is 0, 1, or 2, provided that the sum of m and n is 2], which has not hitherto been used in anionic polymerization, is used as an anionic polymerization initiator to easily and smoothly produce a polymer having a functional group at an end.
由以下通式(i)代表的有机锂化合物:(i) [其中 A 代表选自氧、氮、硫和磷的杂原子;Ar 代表任选取代的芳基;R1 代表 C1-10 烷基;R2 代表 C1-10 亚烷基;R3 代表 C1-10 烷基或官能团 -A-H 的保护基(A 为杂原子);当杂原子 A 为氧或硫时,则 m 和 n 各为 0 或 1,条件是 m 和 n 之和为 1;当杂原子 A 为氮或磷时,则 m 和 n 各为 0、1 或 2,条件是 m 和 n 之和为 2],迄今尚未用于阴离子聚合,用作阴离子聚合引发剂,可轻松顺利地生成末端具有官能团的聚合物。
PROCESS FOR PRODUCING 1-SUBSTITUTED TRANS-4-(SUBSTITUTED AMINO)PIPERIDIN-3-OL
申请人:Sumitomo Chemical Company, Limited
公开号:EP2351738A1
公开(公告)日:2011-08-03
A process for producing a 1-substituted trans-4-(substituted amino)piperidin-3-ol represented by formula (III-1):
wherein R1 represents an aromatic carbocyclic group, an alkyl group having 1 to 12 carbon atoms which may be substituted with one or more aromatic carbocyclic groups, an alkenyl group having 2 to 14 carbon atoms which may be substituted with one or more aromatic carbocyclic groups, or an alkynyl group having 2 to 12 carbon atoms which may be substituted with one or more aromatic carbocyclic groups, and the like,
which comprises a step of reacting a 1-substituted-3,4-epoxypiperidine represented by formula (I):
with an amine compound represented by formula (II)
in the presence of an inorganic lithium salt. By utilizing the process, trans-4-aminopiperidin-3-ol compounds useful as various chemical products, such as medicine intermediates, can be produced.