Tag: 600-700

The author of 《Photoredox-catalyzed stereoselective alkylation of enamides with N-hydroxyphthalimide esters via decarboxylative cross-coupling reactionsã€?were Guo, Jing-Yu; Zhang, Ze-Yu; Guan, Ting; Mao, Lei-Wen; Ban, Qian; Zhao, Kai; Loh, Teck-Peng. And the article was published in Chemical Science in 2019. HPLC of Formula: 94928-86-6 The author mentioned the following in the article:

Stereoselective β-C(sp2)-H alkylation of enamides with redox-active N-hydroxyphthalimide esters via a photoredox-catalyzed decarboxylative cross-coupling reaction was demonstrated. This methodol. featured an operational simplicity, broad substrate scopes and excellent stereoselectivities and functional group tolerance, affording a diverse array of geometrically defined and synthetically valuable enamides bearing primary, secondary or tertiary alkyl groups in satisfactory yields. In the experiment, the researchers used many compounds, for example, fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6HPLC of Formula: 94928-86-6)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. HPLC of Formula: 94928-86-6

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2019,Tetrahedron Letters included an article by Sun, Song; Zhou, Cong; Cheng, Jiang. COA of Formula: C33H24IrN3. The article was titled 《Synthesis of 4-cyanoethylated benzoxazines by visible-light-promoted radical oxycyanomethylation of olefinic amides with bromoacetonitrileã€? The information in the text is summarized as follows:

A facile and efficient protocol for the visible-light-promoted radical oxycyanomethylation of olefinic amides 2-R1C(O)NHC6H4C(=CH2)R2 (R1 = Me, Ph, naphthalen-1-yl, cyclohexyl, thiophen-2-yl, etc.; R2 = Me, phenyl) with bromoacetonitrile has been developed, affording a series of 4-cyanoethylated benzoxazine derivatives I in moderate to excellent yields. The reaction featured with diverse functional group tolerance and mild reaction conditions. The experimental part of the paper was very detailed, including the reaction process of fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6COA of Formula: C33H24IrN3)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.COA of Formula: C33H24IrN3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2019,Tetrahedron Letters included an article by Sun, Song; Zhou, Cong; Cheng, Jiang. COA of Formula: C33H24IrN3. The article was titled 《Synthesis of 4-cyanoethylated benzoxazines by visible-light-promoted radical oxycyanomethylation of olefinic amides with bromoacetonitrile》. The information in the text is summarized as follows:

A facile and efficient protocol for the visible-light-promoted radical oxycyanomethylation of olefinic amides 2-R1C(O)NHC6H4C(=CH2)R2 (R1 = Me, Ph, naphthalen-1-yl, cyclohexyl, thiophen-2-yl, etc.; R2 = Me, phenyl) with bromoacetonitrile has been developed, affording a series of 4-cyanoethylated benzoxazine derivatives I in moderate to excellent yields. The reaction featured with diverse functional group tolerance and mild reaction conditions. The experimental part of the paper was very detailed, including the reaction process of fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6COA of Formula: C33H24IrN3)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.COA of Formula: C33H24IrN3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Photoredox-catalyzed stereoselective alkylation of enamides with N-hydroxyphthalimide esters via decarboxylative cross-coupling reactions》 were Guo, Jing-Yu; Zhang, Ze-Yu; Guan, Ting; Mao, Lei-Wen; Ban, Qian; Zhao, Kai; Loh, Teck-Peng. And the article was published in Chemical Science in 2019. HPLC of Formula: 94928-86-6 The author mentioned the following in the article:

Stereoselective β-C(sp2)-H alkylation of enamides with redox-active N-hydroxyphthalimide esters via a photoredox-catalyzed decarboxylative cross-coupling reaction was demonstrated. This methodol. featured an operational simplicity, broad substrate scopes and excellent stereoselectivities and functional group tolerance, affording a diverse array of geometrically defined and synthetically valuable enamides bearing primary, secondary or tertiary alkyl groups in satisfactory yields. In the experiment, the researchers used many compounds, for example, fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6HPLC of Formula: 94928-86-6)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. HPLC of Formula: 94928-86-6

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Feng, Zengqiang; Zhu, Baoxiang; Dong, Bingbing; Cheng, Li; Li, Yunpu; Wang, Zechao; Wu, Junliang published their research in Organic Letters in 2021. The article was titled 《Visible-Light-Promoted Synthesis of α-CF2H-Substituted Ketones by Radical Difluoromethylation of Enol Acetates》.Electric Literature of C33H24IrN3 The article contains the following contents:

An efficient and novel visible-light-promoted radical difluoromethylation of enol acetates for the synthesis of α-CF2H-substituted ketones were described. Upon irradiation under blue LED with catalytic amounts of fac-Ir(ppy)3, this photocatalytic procedure employed difluoromethyltriphenylphosphonium bromide as a radical precursor. Various α-CF2H-substituted ketones were successfully created via designed systems based on the SET process. The methodol. were provided an operationally simple process with broad functional group compatibility. In the part of experimental materials, we found many familiar compounds, such as fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Electric Literature of C33H24IrN3)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Electric Literature of C33H24IrN3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Shi, Shanshan; Zheng, Zhipeng; Zhang, Yumeng; Yang, Yufei; Ma, Denghui; Gao, Yuzhen; Liu, Yan; Tang, Guo; Zhao, Yufen published their research in Organic Letters in 2021. The article was titled 《Photoinduced Phosphorylation/Cyclization of Cyanoaromatics for Divergent Access to Mono- and Diphosphorylated Polyheterocycles》.Category: pyridine-derivatives The article contains the following contents:

The visible-light-driven switchable phosphorylation of cyanoaroms. with the 1,6-enyne moiety for the diverse and selective synthesis of phosphorylated polyheterocycles, including phosphorylated aminophosphonates, iminophosphonates, and ketones, was described. Importantly, these photocatalytic transformations feature good functional group tolerance and high regio- and chemoselectivities under mild reaction conditions. These findings might stimulate the exploration of new photocatalytic uses of P(O)-H compounds by employing CN-containing substrates as the radical acceptors. In addition to this study using fac-Tris(2-phenylpyridine)iridium, there are many other studies that have used fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Category: pyridine-derivatives) was used in this study.

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

HPLC of Formula: 94928-86-6In 2019 ,《Regioselective and Stereoselective Difluoromethylation of Enamides with Difluoromethyltriphenylphosphonium Bromide via Photoredox Catalysis》 appeared in Organic Letters. The author of the article were Zhu, Tong-Hao; Zhang, Ze-Yu; Tao, Ji-Yu; Zhao, Kai; Loh, Teck-Peng. The article conveys some information:

A regioselective and stereoselective difluoromethylation of enamides with bench-stable and easily accessible difluoromethyltriphenylphosphonium bromide is described. A broad array of synthetically important and geometrically defined β-difluoromethylated enamides bearing various functional groups are obtained with up to 91% yield. In the experiment, the researchers used fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6HPLC of Formula: 94928-86-6)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine and pyridine-derived structures are privileged pharmacophores in medicinal chemistry and an essential functionality for organic chemists. As the prototypical π-deficient heterocycle, pyridine illustrates distinctive chemistry as both substrate and reagent. HPLC of Formula: 94928-86-6

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2019,Polymer included an article by Allegrezza, Michael L.; Thompson, Adam M.; Kloster, Alex J.; Konkolewicz, Dominik. SDS of cas: 94928-86-6. The article was titled 《Efficient coupling by oxygen accelerated photocatalyzed thiol-alkyne chemistry》. The information in the text is summarized as follows:

Thiol reactions have gained attention in many areas of chem. research, such as organic small mol. synthesis, polymer synthesis, and bimol. coupling due to the “”click”” chem. characteristics of this process. This work is a study of a novel method of photochem. thiol-alkyne reactions using alkyl halides and an Ir(ppy)3 photocatalyst. This process is shown to lead to rapid reactions and has the benefit of low catalyst and initiator concentrations relative to reagents. Remarkably, this reaction also has an unusual feature of an increased rate in the presence of oxygen, in contrast to many other types of radical processes. Catalyst and initiator concentrations and reaction conditions are varied in order to gain an understanding of the mechanism of this process. This chem. is then applied to the synthesis of hyperbranched polymers and polymer networks to demonstrate potential applications. In the experiment, the researchers used fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6SDS of cas: 94928-86-6)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. SDS of cas: 94928-86-6

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Feng, Zengqiang; Zhu, Baoxiang; Dong, Bingbing; Cheng, Li; Li, Yunpu; Wang, Zechao; Wu, Junliang published their research in Organic Letters in 2021. The article was titled 《Visible-Light-Promoted Synthesis of α-CF2H-Substituted Ketones by Radical Difluoromethylation of Enol Acetates》.Electric Literature of C33H24IrN3 The article contains the following contents:

An efficient and novel visible-light-promoted radical difluoromethylation of enol acetates for the synthesis of α-CF2H-substituted ketones were described. Upon irradiation under blue LED with catalytic amounts of fac-Ir(ppy)3, this photocatalytic procedure employed difluoromethyltriphenylphosphonium bromide as a radical precursor. Various α-CF2H-substituted ketones were successfully created via designed systems based on the SET process. The methodol. were provided an operationally simple process with broad functional group compatibility. In the part of experimental materials, we found many familiar compounds, such as fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Electric Literature of C33H24IrN3)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Electric Literature of C33H24IrN3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Photocatalytic Radical Aroylation of Unactivated Alkenes: Pathway to β-Functionalized 1,4-, 1,6-, and 1,7-Diketones》 was written by Sarkar, Satavisha; Banerjee, Arghya; Yao, Wang; Patterson, Eric V.; Ngai, Ming-Yu. Computed Properties of C33H24IrN3This research focused onunsym diketone preparation photoredox catalysis; aroyl chloride unactivated alkene aroylation photochem; 1,n-diketones; aroylation; migration; photoredox catalysis; unactivated alkenes. The article conveys some information:

The development of a photocatalytic strategy for the synthesis of β-functionalized unsym. 1,4-, 1,6-, and 1,7-diketones from aroyl chlorides and unactivated alkenes at room temperature is reported. The mild reaction conditions not only tolerate a wide range of functional groups and structural moieties, but also enable migration of a variety of distal groups including (hetero)arenes, nitrile, aldehyde, oxime derivative, and alkene. The efficiency of chirality transfer, factors that control the distal-group migration, and synthesis of carbocycles and heterocycles from the diketones are also described. Mechanistic studies suggest a reaction pathway involving a photocatalytic radical aroylation of unactivated alkenes followed by a distal-group migration, oxidation, and deprotonation to afford the desired diketones. The experimental process involved the reaction of fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Computed Properties of C33H24IrN3)

fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Additionally, pyridine-based natural products continue to be discovered and studied for their properties and to understand their biosynthesis.Computed Properties of C33H24IrN3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem