Dioxazolones as masked ester surrogates in the Pd(<scp>ii</scp>)-catalyzed direct C–H arylation of 6,5-fused heterocycles
作者:Paridhi Saxena、Neha Maida、Manmohan Kapur
DOI:10.1039/c9cc05563k
日期:——
simple and effective Pd(II)-catalyzed regioselectiveC(2)–H arylation of 6,5-fused heterocycles with dioxazolones as a masked ester surrogate undermildconditions is reported. The significance of the arylation is highlighted by the new reactivity demonstrated in dioxazolones via proximal C–H activation of the cyclic carbonate of the hydroxamic acid functionalityunder protic conditions.
The present invention relates to benzo[b]furane and benzo[b]thiophene derivatives of the general formula IV as the free base or salts thereof and their use.
本发明涉及通用公式IV的苯并[b]呋喃和苯并[b]噻吩衍生物作为自由碱或其盐,及其用途。
Fungicides for the control of take-all disease of plants
申请人:Monsanto Company
公开号:US05994270A1
公开(公告)日:1999-11-30
Plant disease caused by soil-borne fungus Gaeumannonyces graminis (Gg) is controlled by applying to the seed or the soil a fungicide which has the following general formula: ##STR1##
POLYCYCLIC AROMATIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE SAME
申请人:SFC CO., LTD.
公开号:US20200172558A1
公开(公告)日:2020-06-04
Disclosed are polycyclic aromatic compounds that can be employed in various organic layers of organic electroluminescent devices. Also disclosed are organic electroluminescent devices including the polycyclic aromatic compounds. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.
Compounds of formula (I) and pharmaceutically-acceptable salts thereof, wherein Ar and R are as defined in the specification, compositions containing such compounds and the use of such compounds and compositions for use in therapy.