2-芳基苯并恶唑是有前途的分子,可在医学和材料领域得到潜在应用。对2-芳基苯并恶唑的直接区域选择性官能化的有效方案有很高的要求。在本文中,我们公开了通用的Cp * Rh(III)能够以高收率实现2-芳基苯并[ d ]恶唑与烯烃的选择性邻烯化的一般方法。该协议具有广泛的功能基团耐受性和高区域选择性。分子间竞争研究和动力学同位素效应实验表明,氧化烯化过程是通过亲电的C–H活化途径发生的。m的分子结构在间位F原子或杂原子取代基存在的情况下,氟取代的烯化产物可在受阻更强的位置证实区域选择性C–H活化/烯化。在单-和双-烯烃化产物的结构中观察到明显的扭转角,这导致烯烃质子的化学位移明显不同。另外,两个克级反应和进一步的转化实验表明,该方法对于合成邻链烯基化的2-芳基苯并恶唑衍生物是实用的。
2,4-diamino-5,6-disubstituted- and 5,6,7-trisubstituted
申请人:FMC Corporation
公开号:US05532370A1
公开(公告)日:1996-07-02
An insecticidal composition comprising, in admixture with an agriculturally acceptable carrier, an insecticidally effective amount of a 5-deazapteridine compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, U, V, and W are as defined herein; agriculturally acceptable salts thereof; methods for using the same; and certain novel 5-deazapteridines per se.
An insecticidal composition comprising, in admixture with an agriculturally acceptable carrier, an insecticidally effective amount of a 5-deazapteridine compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, U, V, and W are as defined herein; agriculturally acceptable salts thereof; methods for using the same; and certain novel 5-deazapteridine per se.
An insecticidal composition comprising, in admixture with an agriculturally acceptable carrier, an insecticidally effective amount of a 5-deazapteridine compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, U, V, and W are as defined herein; agriculturally acceptable salts thereof; methods for using the same; and certain novel 5-deazapteridine per se.
Provided is an organic light emitting device comprising a light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2:
wherein:
Ar
1
, Ar
2
, Ar
4
and Ar
5
are each independently a substituted or unsubstituted C
6-60
aryl or C
2-60
heteroaryl containing N, O or S;
Ar
3
is hydrogen, or a substituted or unsubstituted C
6-60
aryl or C
2-60
heteroaryl containing N, O or S;
L
1
to L
3
are each independently a single bond or a substituted or unsubstituted C
6-60
arylene;
L
4
to L
6
are each independently a single bond or a substituted or unsubstituted C
6-60
arylene or C
2-60
heteroarylene containing N, O or S;
L
7
is a substituted or unsubstituted C
6-60
arylene;
R
1
is hydrogen, deuterium, or a substituted or unsubstituted C
6-60
aryl or C
2-60
heteroaryl containing one or of N, O and S;
a is 0 to 7.