已开发出一种有效的苯并[ b ]吨蒽酮体系新途径,并将其应用于几种新衍生物的合成。色酮-3-羧醛12的环加成反应(作为亲二烯体)与邻-苯并醌二甲烷7反应,得到环加合物8和9的非对映异构体混合物。这些化合物的形成是由12和7的Diels–Alder反应以及随后的原位甲酰化作用引起的。在碘的存在下,用二甲基亚砜氧化加合物8和9生成了新颖的苯并[ b ]氧杂蒽11 丰产。
Über Azofarbstoffe aus Arylestern der 2-Oxy-3-naphthoesäure und der 1-Oxy-2-naphthoesäure
作者:E. Jusa、A. von Janovich
DOI:10.1007/bf01798090
日期:1937.12
12H-BENZO[b]XANTHEN-12-ONES, COMPOSITIONS CONTAINING, AND USES OF, SAME
申请人:Beeley Nigel Robert Arnold
公开号:US20180179174A1
公开(公告)日:2018-06-28
The present invention provides compounds of the following structure,
methods of using such compounds, and pharmaceutical compositions containing such compounds. In addition, this invention provides methods for the treatment and/or prevention of disease states mediated by Aryl Hydrocarbon receptor pathways.
Diels–Alder reactions of chromone-3-carboxaldehydes with ortho-benzoquinodimethane. New synthesis of benzo[b]xanthones
efficient new route to the benzo[b]xanthone system has been developed and applied to the synthesis of several new derivatives. The cycloaddition reactions of chromone-3-carboxaldehydes 12, reacting as dienophiles, with ortho-benzoquinodimethane 7 gave a diastereomeric mixture of cycloadducts 8 and 9. The formation of these compounds results from the Diels–Alder reactions of 12 and 7 followed by the in
已开发出一种有效的苯并[ b ]吨蒽酮体系新途径,并将其应用于几种新衍生物的合成。色酮-3-羧醛12的环加成反应(作为亲二烯体)与邻-苯并醌二甲烷7反应,得到环加合物8和9的非对映异构体混合物。这些化合物的形成是由12和7的Diels–Alder反应以及随后的原位甲酰化作用引起的。在碘的存在下,用二甲基亚砜氧化加合物8和9生成了新颖的苯并[ b ]氧杂蒽11 丰产。
유기전기소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치
申请人:DUK SAN NEOLUX CO., LTD. 덕산네오룩스 주식회사(120150011099) Corp. No ▼ 161511-0176036BRN ▼312-86-74729
公开号:KR20210076333A
公开(公告)日:2021-06-24
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