Hydrogenation catalyst composition and method for hydrogenation of conjugated diene polymer
申请人:Tsai Chih-Kuang
公开号:US20080146733A1
公开(公告)日:2008-06-19
A method for hydrogenation of a conjugated diene polymer is provided. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III):
wherein R is C
1
-C
12
alkyl, C
3
-C
12
cycloalkyl, aryl or alkyl aryl, M is C
1
-C
12
alkyl, C
1
-C
12
alkoxy, aryl, alkyl aryl, phenoxy or hydroxyl, and n=1˜3; and (c) a alkylaluminum compound.
US7612148B2
申请人:——
公开号:US7612148B2
公开(公告)日:2009-11-03
Copper-Catalyzed Synthesis of α-Hydroxy Phosphonates from<i>H</i>-Phosphonates and Alcohols or Ethers
Easy PC: α‐Hydroxy phosphonates were synthesized by copper/tert‐butyl hydroperoxide (TBHP)‐catalyzed oxidative addition reactions of H‐phosphonates with alcohols or ethers. Diverse α‐hydroxy phosphonates were obtained from substituted benzyl alcohols or alkyl alcohols and alkyl ethers in moderate to good yields.