Uncatalyzed, green aza-Michael addition of amines to dimethyl maleate
作者:Giovanna Bosica、Anthony John Debono
DOI:10.1016/j.tet.2014.06.124
日期:2014.9
Dimethylmaleate was found to be a very reactive and selective acceptor for the aza-Michael addition in comparison to other commonly used electron-deficient alkenes. It reacts efficiently with a variety of aliphatic amines in complete absence of any catalyst and solvent at room temperature. Under these environmentally-friendly conditions, high yields of selectively mono-adducts were obtained within
申请人:Valvoline Licensing and Intellectual Property LLC
公开号:US20200385647A1
公开(公告)日:2020-12-10
Novel friction reducing additives provide friction modification at a lower effective concentration when added to a motor oil base. A friction reducing motor oil composition may include motor oil base and a friction reducing additive having the structure of the general formula (I):
wherein: R
1
is a straight or branched C
5
-C
30
alkyl or alkenyl; R
2
is H, or a straight or branched alkyl of C
1
-C
10
; R
3
is H, or a straight or branched alkyl of C
1
-C
10
; P is 0 or C
1
; n is C
1
-C
5
; and m is C
0
-C
5
.