作者:Richard D. Chambers、Peter A. Martin、Graham Sandford、D. Lyn H. Williams
DOI:10.1016/j.jfluchem.2008.04.009
日期:2008.10
The effect of fluorine as a substituent group on nucleophilic aromatic substitution is discussed, where a fluorine atom located ortho to the point of substitution may be of variable activating influence, whereas fluorine located para is slightly deactivating and meta is activating. A rationale of these effects is presented and evidence to support polar influences by ortho fluorine is advanced. The
A compound of Formula (2):
wherein: Y is -F or -Cl;
and a process for its preparation from a compound of Formula (3):
wherein: Y is -F or -Cl; with a process for the preparation of a compound of Formula (3) from a compound of Formula (4):
wherein: Y is -F or -Cl;
and a process for the conversion of a compound of Formula (2) into a compound of Formula (1):
are provided.
Compounds of Formula (1) are useful as intermediates in the manufacture of agrochemicals, pharmaceuticals and dyestuffs.
Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US11482681B2
公开(公告)日:2022-10-25
A compound is represented by one of formulae (11) to (13). R1 to R4 each independently represent a group represented by a formula (1-1) or the like, or a group represented by a formula (2-1), a group represented by a formula (2-2) or the like. At least one of R1 to R4 is the group represented by the formula (1-1) or the like. At least one of R1 to R4 is the group represented by the formula (2-1), (2-2) or the like. For instance, X1 represents an oxygen atom, a sulfur atom, or CR151R152, R101 to R110 and R151 and R152 each independently representing a hydrogen atom or a substituent. For instance, R161 to R168 and R171 and R180 each independently represent a hydrogen atom or a substituent. * each independently represents a bonding position to a carbon atom in a benzene ring in each of formulae (11) to (13):
COMPOUND OF FORMULA (I), A SEMICONDUCTOR MATERIAL COMPRISING AT LEAST ONE COMPOUND OF FORMULA (I), AN SEMICONDUCTOR LAYER COMPRISING AT LEAST ONE COMPOUND OF FORMULA (I) AND AN ELECTRONIC DEVICE COMPRISING AT LEAST ONE COMPOUND OF FORMULA (I)
申请人:Novaled GmbH
公开号:EP3945125A1
公开(公告)日:2022-02-02
The present invention relates to a compound of Formula (I), a semiconductor material comprising at least one compound of Formula (I), an semiconductor layer comprising at least one compound of Formula (I) and an electronic device comprising at least one compound of Formula (I).