COBALT COMPLEX, METHOD FOR MANUFACTURING SAME, AND METHOD FOR MANUFACTURING COBALT-CONTAINING THIN FILM
申请人:TOSOH CORPORATION
公开号:US20220017553A1
公开(公告)日:2022-01-20
To provide a cobalt complex which is liquid at room temperature, useful for producing a cobalt-containing thin film under conditions without using an oxidizing gas.
A cobalt complex represented by the following formula (1):
L
1
-Co-L
2
(1)
wherein L
1
and L
2
represent a unidentate amide ligand of the following formula (A), a bidentate amide ligand of the following formula (B) or a hetero atom-containing ligand of the following formula (C):
wherein R
1
and R
2
represent a C
1-6
alkyl group or a tri(C
1-6
alkyl)silyl group, and the wave line represents a binding site to the cobalt atom;
wherein R
3
represents a tri(C
1-6
alkyl)silyl group, R
4
and R
5
represent a C
1-4
alkyl group, and X represents a C
1-6
alkylene group;
wherein R
6
and R
8
represent a C
1-6
alkyl group, R
7
represents a hydrogen atom or a C
1-4
alkyl group, Y represents an oxygen atom or NR
9
, Z represents an oxygen atom or NR
10
, and R
9
and R
10
independently represent a C
1-6
alkyl group.
A simple method for selective monoalkylation of methyl cyanoacetate and acetylacetone using 1,8-diaza-bicyclo[5.4.0]undecene -7(DBU) as a base is described.
Synthesis of Valuable Chiral Intermediates by Isolated Ketoreductases: Application in the Synthesis of α-Alkyl-β-hydroxy Ketones and 1,3-Diols
作者:Dimitris Kalaitzakis、J. David Rozzell、Ioulia Smonou、Spiros Kambourakis
DOI:10.1002/adsc.200606185
日期:2006.9
and in two examples both ketones were reduced to the 1,3-diol. By replacing the α-alkyl substituent with the OAc group, 1-keto-2,3-diols, as well as 1,2,3-triols were synthesized in high optical purities. These enzymatic reactions provide a simple, highly stereoselective and quantitative method for the synthesis of different diastereomers of valuable chiralsynthonsfrom non-chiral, easily accessible
Effect of the alkylating agent nature in the case of O- and C-alkylation of both ethyl acetoacetate and acetylacetonate anions is reported. The value of the O/C-ratio depends on three factors: the polar effect of the alkyl substituents in the alkylating agents, the steric effect of the alkyl groups and the symbiotic effect of the leaving groups. The relative contributions of the first two effects depends
[EN] TRIAZINE COMPOUNDS AND THEIR USE<br/>[FR] COMPOSES DE TRIAZINE ET LEUR UTILISATION
申请人:NOVO PHARMACEUTICALS LTD DE
公开号:WO2004096808A1
公开(公告)日:2004-11-11
A compound of formula (I) wherein R1 is hydrogen, alkyl, -alkyl-aryl, -alkyl-heterocycloalkyl or -alkyl-0-heterocycloalkyl; R2 is hydrogen, hydroxy, amino, nitro, alkoxy, alkyl, aryl or heteroaryl; R3 is hydrogen, alkyl or aryl; R4 is hydrogen, alkyl, aryl, heteroaryl, -CH(aryl)2, -alkyl-aryl or -C(0)0-alkyl; and R5 is alkyl, hydroxy or amino; or a pharmaceutically acceptable salt thereof; is new for use in therapy, e.g. in the treatment of Alzheimer's disease.