P-[N-(Diphenyl­phospho­rothio­yl)iso­propyl­amino]-N-isopropyl-P-phenyl­thio­phosphinic amide

The title compound, C24H30N2P2S2, was obtained by the reaction of Ph2PN(iPr)P(Ph)N(iPr)H with elemental sulfur in tetra­hydro­furan. In the solid state, intra­molecular N—H⋯S hydrogen bonding influences the mol­ecular conformation; a P—N—P—N torsion angle of 2.28 (9)° is observed. The two phenyl rings attached to one P atom form a dihedral angle of 74.02 (4)°

An Evaluation of Bitcoin From Shariah Perspective

Bitcoin is one of the most successful cases of blockchain use. The objective of this paper is to examine the characteristics of cryptocurrencies, with a specific emphasis on bitcoin. The fundamental attributes, features of bitcoin and how they operate on blockchain are evaluated from the Shariah perspective to determine if they are consistent with Shariah principles. To accomplish the objective, the authors adopted a qualitative secondary analysis (QSA) approach by utilizing the existing data

Synthesis and Reactions of the Homoleptic Chromium(II) Bis-amide [Ph₂PN(ⁱPr)P(Ph)N(ⁱPr)−]₂Cr with Relevance to a Selective Catalytic Ethene Trimerization System to 1-Hexene

New organometallic compounds were obtained on the basis of the aminodiphosphinoamine ligand Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)-H (<b>1</b>), which is relevant for the selective ethene trimerization system consisting of ligand <b>1</b>, CrCl₃(THF)₃, and Et₃Al. This catalytic system produces 1-hexene in more than 90% yield and high purity. Here, we report a more efficient, high-yield synthesis of the recently published homoleptic magnesium complex [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]₂Mg (<b>2</b>) by reaction of <i>n</i>-butylethylmagnesium and <b>1</b> in Et₂O. Compound <b>2</b> can be used as a reagent to transfer the amide moiety [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−] effectively to a chromium or aluminum center. <i>In situ</i> synthesis of the magnesium amide <b>2</b> followed by addition of CrCl₂(THF)₂ results in the formation of the homoleptic chromium­(II)­bis-amide [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]₂Cr (<b>3</b>) by transmetalation. The structure of chromium compound <b>3</b> is in some aspects similar to that of the corresponding homoleptic magnesium complex <b>2</b>. Reacting <b>2</b> with ethylaluminum dichloride results in the formation of the respective aluminum amide [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]­[AlEtCl] (<b>4</b>), for which the direct synthesis of <b>1</b> with diethylaluminum chloride was unsuccessful. Additionally, we investigated compound <b>3</b> with potentially interesting activators such as Et₂Zn, Et₃Al, and Et₃B to obtain more information about the catalytic properties of these systems

Synthesis and Reactions of the Homoleptic Chromium(II) Bis-amide [Ph₂PN(ⁱPr)P(Ph)N(ⁱPr)−]₂Cr with Relevance to a Selective Catalytic Ethene Trimerization System to 1-Hexene

New organometallic compounds were obtained on the basis of the aminodiphosphinoamine ligand Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)-H (<b>1</b>), which is relevant for the selective ethene trimerization system consisting of ligand <b>1</b>, CrCl₃(THF)₃, and Et₃Al. This catalytic system produces 1-hexene in more than 90% yield and high purity. Here, we report a more efficient, high-yield synthesis of the recently published homoleptic magnesium complex [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]₂Mg (<b>2</b>) by reaction of <i>n</i>-butylethylmagnesium and <b>1</b> in Et₂O. Compound <b>2</b> can be used as a reagent to transfer the amide moiety [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−] effectively to a chromium or aluminum center. <i>In situ</i> synthesis of the magnesium amide <b>2</b> followed by addition of CrCl₂(THF)₂ results in the formation of the homoleptic chromium­(II)­bis-amide [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]₂Cr (<b>3</b>) by transmetalation. The structure of chromium compound <b>3</b> is in some aspects similar to that of the corresponding homoleptic magnesium complex <b>2</b>. Reacting <b>2</b> with ethylaluminum dichloride results in the formation of the respective aluminum amide [Ph₂PN­(ⁱPr)­P­(Ph)­N­(ⁱPr)−]­[AlEtCl] (<b>4</b>), for which the direct synthesis of <b>1</b> with diethylaluminum chloride was unsuccessful. Additionally, we investigated compound <b>3</b> with potentially interesting activators such as Et₂Zn, Et₃Al, and Et₃B to obtain more information about the catalytic properties of these systems

Assesssing the survival of transgenic plant DNA in the human gastrointestinal tract

No description supplie