Nickel/Cobalt-Catalyzed C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Cross-Coupling of Alkyl Halides with Alkyl Tosylates
作者:Kimihiro Komeyama、Takuya Michiyuki、Itaru Osaka
DOI:10.1021/acscatal.9b03352
日期:2019.10.4
The C(sp3)–C(sp3) cross-coupling of alkyl halides with alkyl tosylates has been developed by employing a combination of nickel and nucleophilic cobalt catalysts in the presence of a manganese reductant. This method provides a straightforward route to a diverse set of not only secondary–primary but also primary–primary C(sp3)–C(sp3) linkages under mild conditions without using alkyl-metallic reagents
OPTICAL RECORDING COMPOSITION AND HOLOGRAPHIC RECORDING MEDIUM
申请人:SUZUKI Hiroyuki
公开号:US20090202921A1
公开(公告)日:2009-08-13
The present invention provides an optical recording composition comprising at least one compound denoted by general formula (I) and a holographic recording medium comprising a recording layer, wherein the recording layer comprises at least one compound denoted by general formula (I).
In general formula (I), each of A
1
and A
2
independently denotes —CR
4
R
5
—, —O—, —NR
6
—, —S—, or —C(═O)—, each of R
4
, R
5
, and R
6
independently denotes a hydrogen atom or a substituent, R
1
denotes a substituent, n denotes an integer ranging from 0 to 4, each of R
2
and R
3
independently denotes a substituent having a Hammett substituent constant, σp value, of greater than 0, R
2
and R
3
do not form a ring structure by bonding together, and at least one from among R
1
, R
2
, R
3
, A
1
, and A
2
comprises at least one polymerizable group.