N-甲基马来酰亚胺 、 天然橡胶 在
(R)-2,2'-dihydroxy-1,1'-binaphthyl-4,4'-dibenzoic acid using for metal organic framework-coordination of di-copper(II) ion 作用下,
以
乙酸乙酯 为溶剂,
反应 48.0h,
以37%的产率得到2,5-dimethyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione
Photoinitiator compounds comprising both a photoactive moiety and an amine functionality, bonded to a polyhedral oligomeric silsesquioxane, which photoinitiator is represented by formula (1) or (1′) wherein n is 2m; m is an integer of 2 to 30; the sum of n′+a is an integer 4-60; n′ is an even-numbered integer; a is an even- or uneven-numbered integer; and for example different A C
1
-C
12
alkyl, or a photoactive moiety Q1, or a group of formula (2); E for example is a direct bond, L is linear or branched C
1
-C
3
alkylene, preferably propylene; R
1
and R
2
for example are a photoactive moiety Q, or C
2-20
alkyl; Q is for example a group of formula (4); Z
2
is for example C
1
-C
6
alkylene which is unsubstituted or substituted by one or more OR
6
; and R
6
, R
12
, R
13
and R
14
for example are hydrogen; are especially suitable as low-migrating photoinitiators.
US8637585B2
申请人:——
公开号:US8637585B2
公开(公告)日:2014-01-28
Enantioselective Diels–Alder reaction in the confined space of homochiral metal–organic frameworks
synthesized using (R)-2,2[prime or minute]-dihydroxy-1,1[prime or minute]-binaphthyl-4,4[prime or minute]-dibenzoic acid as chiral ligand, which acts as an effective heterogeneous catalyst for asymmetric Diels-Alderreaction between isoprene and...