[EN] PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS<br/>[FR] PROCÉDÉ DE FABRICATION D'UN POLYMÈRE AYANT DES GROUPES URÉTHANNE
申请人:BASF SE
公开号:WO2019034473A1
公开(公告)日:2019-02-21
Process for the manufacturing of a polymer with urethane groups, wherein in a first alternative a compound A) with at least two five-membered cyclic monothiocarbonate groups and a compound B) with at least two amino groups, selected from primary or secondary amino groups and optionally a compound C) with at least one functional group that reacts with a group -SH are reacted or wherein in a second alternative a compound A) with at least two five-membered cyclic monothiocarbonate groups or a mixture of a compound A) with a compound A1)with one five-membered cyclic monothiocarbonate group and a compound B) with at least two amino groups, selected from primary or secondary amino groups or a compound B1) with one amino group selected from primary or secondary amino groups or mixtures of compounds B) and B1) and a compound C) with at least two functional groups that react with a group -SH or in case of a carbon-carbon triple bond as functional group that react with a group -SH, a compound C) with at least one carbon-carbon triple bond. are reacted.
[EN] METHOD FOR THE PREPARATION OF THIOCARBONATES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE THIOCARBONATES
申请人:BASF SE
公开号:WO2019034469A1
公开(公告)日:2019-02-21
Process for the preparation of a compound with at least one five-membered cyclic monothiocar- bonate group wherein a) a compound with at least one epoxy group is used as starting material b) the compound is reacted with phosgene or an alkyl chloroformate thus giving an adduct and c) the adduct is reacted with a compound comprising anionic sulfurthus obtaining the com- pound with at least one five-membered cyclic monothiocarbonate group.
[EN] PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN POLYMÈRE PRÉSENTANT DES GROUPES URÉTHANE
申请人:BASF SE
公开号:WO2019034470A1
公开(公告)日:2019-02-21
Object of the invention is a process for the manufacturing of a polymer with urethane groups, wherein in a first alternative A)a five-membered cyclic monothiocarbonate B)a compound with at least two amino groups, selected from primary or secondary amino groups, and C)a compound which at least two functional groups that react with a group -SH or, in case of a carbon-carbon triple bond as functional group that react with a group -SH, a compound with at least one carbon-carbon triple bond are reacted or wherein in a second alternative A)a five-membered cyclic monothiocarbonate and D)a compound with at least one primary or secondary amino group and at least one functional group that reacts with a group -SH.
The present invention provides processes for the demethylation of an N-methyl morphinan comprising a ketone functional group. In particular, the invention provides methods for the protection of the ketone functional group such that impurities are not generated during the demethylation of the N-methyl morphinan.
GEM-DISUBSTITUTED PYRROLIDINES, PIPERAZINES, AND DIAZEPANES, AND COMPOSITIONS AND METHODS OF MAKING THE SAME
申请人:California Institute of Technology
公开号:US20200199114A1
公开(公告)日:2020-06-25
Described here are transition metal-catalyzed enantioselective arylation and vinylation reactions of α-substituted lactams, such as γ-lactams. The use of various electrophiles and ligands are described, and result in the construction of α-quaternary centers in good yields (up to 91% yield) and high enantioselectivities (up to 97% ee).