cyclopentadienylchromiumtricarbonyl hydride

Base Information

• Chemical Name: cyclopentadienylchromiumtricarbonyl hydride
• CAS No.: 36495-37-1
• Molecular Formula: C₈H₆CrO₃
• Molecular Weight: 202.13

Synonyms:cyclopentadienylchromiumtricarbonyl hydride

Chemical Property of cyclopentadienylchromiumtricarbonyl hydride

Chemical Property:

Purity/Quality:

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Technology Process of cyclopentadienylchromiumtricarbonyl hydride

There total 6 articles about cyclopentadienylchromiumtricarbonyl hydride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 7.0%

Lawessons reagent (19172-47-5,94367-93-8) + bis(cyclopentadienylchromium tricarbonyl) + toluene (108-88-3,15644-74-3,16713-13-6) → cyclopentadienylchromiumtricarbonyl hydride (36495-37-1) + [(η5-C5H5)Cr(CO)2]2S + (η5-C5H5)2Cr2(CO)5(SPC6H4OMe) + (η5-C5H5)2Cr2(CO)5(S2PC6H4OMe)*0.25(toluene) + (η5-C5H5)2Cr2(S2P(O)C6H4OMe)2*0.25(toluene)

Guidance literature:

In toluene; under N2 or Ar; mixt. of Cr complex and Lawesson's reagent (molar ratio 1:1) in toluene stirred at ambient temp. for 4 h; concd.; filtered; filtrate column chromd. (silica gel); sepd. to five fractions: dark green band in n-hexane-toluene (CpCr(CO)3H), green band in n-hexane-toluene ((CpCr(CO)2)2S), brown band in toluene, concd. (Cr2-SPAr), red band in toluene (Cr2-S2PAr), blue in toluene-THF (Cr-S2P(O)Ar); elem. anal.;

DOI:10.1021/om020933z

Reference yield: 4.0%

tetrahydrofuran (109-99-9,24979-97-3,77392-70-2) + Lawessons reagent (19172-47-5,94367-93-8) + bis(cyclopentadienylchromium tricarbonyl) + toluene (108-88-3,15644-74-3,16713-13-6) → cyclopentadienylchromiumtricarbonyl hydride (36495-37-1) + [(η5-C5H5)Cr(CO)2]2S + (η5-C5H5)Cr(CO)2(SP(H)C6H4OMe) (524741-42-2) + (η5-C5H5)2Cr2(S2P(O)C6H4OMe)2*0.25(toluene) + cis-[(η5-C5H5)Cr(CO)2(SPC6H4OMe)]2*0.5(toluene)

Guidance literature:

In toluene; under N2 or Ar; mixt. of Cr complex and Lawesson's reagent (molar ratio 1:1) in toluene stirred at 90°C for 2 h; filtered; filtrate concd.; column chromd. (silica gel); sepd. to 6 bands: yellow band in n-hexane-toluene (CpCr(CO)3H), green band in n-hexane-toluene ((CpCr(CO)2)2S), red in toluene (Cr-SP(H)Ar), reddish brown in toluene (cis-Cr-SPAr), red in toluene (trans-), blue in toluene-THF (Cr-S2P(O)Ar); elem. anal.;

DOI:10.1021/om020933z

Reference yield:

bis(triphenylphosphine)iminium cyclopentadienyl chromium tricarbonyl + (η-5-C5Ph5)Cr(CO)3H (268747-57-5) → cyclopentadienylchromiumtricarbonyl hydride (36495-37-1) + bis(triphenylphosphine)iminium pentaphenylcyclopentadienyl chromium tricarbonyl

Guidance literature:

In dichloromethane; not isolated; monitored by NMR between 230 and 270 K;

DOI:10.1021/ja034927l

upstream raw materials:

tetrahydrofuran

Lawessons reagent

toluene

bis(benzonitrile)palladium(II) chloride

Downstream raw materials:

(E)-pent-2-en-2-ylbenzene

α-cyclopropyl ethyl benzene

2-methyl-2-pentene

2-cyclopropylpropane

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