SILYL-PROTECTED NITROGEN-CONTAINING CYCLIC COMPOUNDS AND MAKING METHOD
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20140357862A1
公开(公告)日:2014-12-04
Silyl-protected nitrogen-containing cyclic compounds having formula (1) are provided wherein R
1
, R
2
and R
3
each are a monovalent hydrocarbon group, R
4
and R
5
each are a divalent hydrocarbon group, R
6
, R
7
and R
8
each are H or a monovalent hydrocarbon group. A is —C(O)OR
9
or —C≡N, R
9
is a monovalent hydrocarbon group, and a is 0 or 1. The compounds are added to polyurethane, polyester or polycarbonate resins to form one part type curable compositions for imparting stiffness, mechanical strength and transparency thereto.
Silyl-protected nitrogen-containing cyclic compounds and making method
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US09233988B2
公开(公告)日:2016-01-12
Silyl-protected nitrogen-containing cyclic compounds having formula (1) are provided wherein R1, R2 and R3 each are a monovalent hydrocarbon group, R4 and R5 each are a divalent hydrocarbon group, R6, R7 and R8 each are H or a monovalent hydrocarbon group. A is —C(O)OR9 or —C≡N, R9 is a monovalent hydrocarbon group, and a is 0 or 1. The compounds are added to polyurethane, polyester or polycarbonate resins to form one part type curable compositions for imparting stiffness, mechanical strength and transparency thereto.
Process for preparing piperazinyl quinolone derivatives
申请人:Korea Institute of Science and Technology
公开号:US05051505A1
公开(公告)日:1991-09-24
A novel process for preparing piperazinyl quinolone derivatives of the formula (I) is disclosed. The process comprises reacting dihaloquinolones with piperazine derivatives and tetraalkyl ammonium halides in the presence of a polar solvent such as acetonitrile, dimethylformamide, pyridine, sulfolane and dimethyl sulfoxide. ##STR1##