586958-92-1Relevant academic research and scientific papers
Synthesis and characterization of polyester dendrimers from acetoacetate and acrylate
Hirayama, Yuuki,Nakamura, Taisuke,Uehara, Satoshi,Sakamoto, Yohko,Yamaguchi, Kentaro,Sei, Yoshihisa,Iwamura, Michiko
, p. 525 - 528 (2005)
(Chemical Equation Presented) New aliphatic polyester-type dendrimers were synthesized using a new AB2-type building block 3, prepared from benzyl acetoacetate and 2 equiv of tert-butyl acrylate by acetoacetic acid ester synthesis. The reiterative [deprotection by HCO2H, then EDCI/DMAP coupling] sequence using divergent growth method gave [G1]-4tBu-[G5]-64tBu dendrimers. 13C NMR relaxation time (T1) measurements on the carboxy carbons show that the extended chain conformations are predominant in CDCl3.
Michael addition reactions of acetoacetates and malonates with acrylates in water under strongly alkaline conditions
Iwamura, Michiko,Gotoh, Yuka,Hashimoto, Tomoyuki,Sakurai, Reiko
, p. 6275 - 6277 (2007/10/03)
Michael addition reactions of acetoacetates and malonates with acrylates in a 5 M KOH aqueous solution without using any other catalysts are described. When they are either tert-butyl or benzyl esters, the reaction proceeded very rapidly to afford moderate to high yields of the corresponding bis-Michael adducts that are unexpectedly stable under these conditions.
