817-80-1Relevant articles and documents
PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS
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Page/Page column 31-33, (2019/03/05)
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 second
PROCESS FOR THE MANUFACTURING OF A POLYMER WITH URETHANE GROUPS
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Page/Page column 27-28, (2019/03/05)
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.
Reaction of Epoxides with Chlorocarbonylated Compounds Catalyzed by Hexaalkylguanidinium Chloride
Gros, P.,Perchec, P. Le,Senet, J. P.
, p. 4925 - 4930 (2007/10/02)
Silica-supported guanidinium chloride (PBGSiCl) exhibits efficient chemo- and regiospecific catalytic activity in the ring opening of epoxides with various electrophiles.This reaction allows the preparation of β-chloro esters and β-chloro chloroformates in high yield under neutral conditions which offer product stability and ease of product isolation.