51446-58-3

Upstream product

• 14220-21-4 rhenium(I) pentacarbonyl bromide 
• 302-72-7 rac-Ala-OH 
• 107-95-9 3-amino propanoic acid 
• 603-35-0 triphenylphosphine 
• 20545-30-6 bis(triphenylphosphoranylidene)ammonium bromide 
• 113735-70-9 Br(OC)3Re(NH₂CH(CH₂C₆H₅)CONHCH(CH₂C₈H₅NH)CO₂C₂H₅)2 
• 14841-07-7 Re(CO)4(P(C₆H₅)3)Br 
• 99942-69-5 N-Methyl-N,N'-di-p-tolyl-acetamidine 
• 621-09-0 N,N'-diphenylacetamidine 
• 13471-34-6 N,N'-di-p-tolylbenzamidine 
• 2556-46-9 N,N'-diphenylbenzamidine 
• 5132-17-2 N,N'-di(p-tolyl)acetamidine 
• 201141-16-4 [mer,trans-Re(CO)3-(NHO)(PPh₃)2][CF₃SO₃] 
• 1643-19-2 tetrabutylammomium bromide 

Downstream Products

• 136921-71-6 mer,trans-Re(η1-OSO2CF3)(CO)3(PPh3)2 
• 118228-17-4 trans-Re(CO)4(PPh₃)2BF₄ 

Relevant academic research and scientific papers

Synthesis of novel photofunctional multinuclear complexes using a coupling reaction

Various photofunctional metal complexes with functional groups, i.e. bromo and vinyl groups, were integrated into hetero-multinuclear complexes using the Mizoroki-Heck reaction. The obtained trinuclear complexes absorb a wide range of visible light and ha

Synthesis and reactivity of trans-ReF(CO)3(PPh3)2 and trans-(Me3SiO)3V≡NRe(CO)3(PPh 3)2

The d6 fluoro complex trans-ReF(CO)3(PPh3)2 (1) has been prepared in good yield by reaction of trans-ReCl(CO)3(PPh3)2 (2) with Ag(SO3CF3) followed by [N(PPh3)2]F. Addition of 2 equiv of [N(PPh3)2]Cl to 1 affords not the expected simple anion-metathesis equilibrium, but a mixture containing 2 as well as other species. The lability of 1 toward carbonyl exchange with 13CO and toward reaction with NCS- has been examined and is far greater than that for 2. Compound 1 reacts with V(NSiMe3)(OSiMe3)3 (4) to form Me3SiF and trans-(Me3SiO)3V≡NRe(CO)3(PPh 3)2 (5), whereas no reaction is observed upon addition of the chloro complex 2 to 4. Reaction of 5 with Me3SiCl cleanly substitutes chlorides for the trimethylsiloxy groups on vanadium to generate trans-Cl3V≡NRe(CO)3(PPh3)2 (6), with no evidence for the expected cleavage of the nitride bridge to yield 2 and 4. Spectroscopic and solution properties of this series of compounds and comparisons of the fluoro complex (1) with its heavier halo analogues are presented.

Amidino-complexes of Rhenium. Bidentate NN'- and ortho-Metallated Derivatives

> complexes (I; R=Me or Ph; R'=Ph or C6H4Me-p), containing delocalised bidentate NN'-chelated amidino-groups, have been prepared by reactions of (i) 2> (X=Cl or Br) with R'N(Li)C(R)NR', (ii) X> with LiBun, (iii) with R'NHC(R)NR', and (iv) by decarbonylation of > complexes.Triphenylphosphine displaces CO from (I) to form > (II), which are more conveniently prepared by the reactions of (L'=PPh3 or AsPh3) with amidines in refluxing toluene.This reaction stops at the intermediate compound Br> when a NNN'-trisubstituted amidine is used.Related complexes Br> are formed when (II) are treated with hydrobromic acid. (X=Cl or Br) and 2> react with amidines to form o-metallated > (R=H, R'=Ph; R''=H; R=Me or Ph, R'=C6H4Me-p, R''=Me; R=Me or Ph, R'=Ph, R''=H) complexes which contain a six-membered o-metallated ring.Benzamidines (R=Ph) produce in addition an isomeric complex in which o-metallation of the R substituent occurs to give complexes having five-membered o-metallated rings.Intermediate 2X> complexes were isolated for R'=C6H4Me-p, R=Me, and X=Cl or Br.A 1,3-proton-shift mechanism for the o-metallation reaction is eliminated by the formation of the complex > (R'=C6H4Me-p) from R'N(Me)C(Me)NR'.Reaction schemes are suggested for the course of the reactions, and structures for the new complexes are proposed on the basis of spectroscopic data.