tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

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Chemical Name:tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane
CAS No.:124044-20-8
Molecular Formula:C₂₉H₃₄OSSi
Molecular Weight:458.74
Hs Code.:

Synonyms:tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

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Chemical Property of tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

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Technology Process of tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

There total 8 articles about tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane 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:

: 124044-18-4
3,5-Dinitro-benzoic acid 1-[(Z)-1-(tert-butyl-diphenyl-silanyloxymethyl)-but-1-en-3-ynyl]-6-mercapto-4,4-dimethyl-hex-2-ynyl ester

: 124044-20-8
tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

Guidance literature:: With cyclohexa-1,4-diene; In dimethylsulfoxide-d6; dichloromethane-d2; at 0 - 10 ℃; for 0.5h;

Reference yield:

: 124044-30-0
(Z)-ethyl 2-bromo-3-ethynyl-(trimethylsilyl)propenoate

: 124044-20-8
tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

Guidance literature:: Multi-step reaction with 7 steps

1: 95 percent / 4-(dimethylamino)pyridine, triethylamine / tetrahydrofuran / 3.5 h / 23 °C

2: 1.) tert-butyllithium / 1.) THF, Et₂O, pentane, -120 deg C, 2.) THF, Et₂O, pentane, from -120 to -40 deg C, 3 h

3: 1.) lithium diisopropylamide, anhydr. cesium(III) chloride / 1.) THF, -78 deg C, 30 min, 2.) THF, -78 deg C, 30 min

4: 70 percent / NaH / tetrahydrofuran; methanol / 4 h / 0 °C

5: 90 percent / 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 4-(dimethylamino)pyridine / CH₂Cl₂ / 0.5 h / 0 °C

6: 82 percent / tributylphosphine / 1,2-dimethoxy-ethane; H₂O / 0.5 h / 0 °C

7: 1,4-cyclohexadiene / dimethylsulfoxide-d6; CD₂Cl₂ / 0.5 h / 0 - 10 °C

With dmap; tributylphosphine; cyclohexa-1,4-diene; cerium(lll) chloride; tert.-butyl lithium; sodium hydride; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; lithium diisopropyl amide; In tetrahydrofuran; methanol; 1,2-dimethoxyethane; dimethylsulfoxide-d6; dichloromethane; dichloromethane-d2; water;

Reference yield:

: 124044-22-0
(1,1-dimethylethyl)<(2-bromo-2-pentene-5-trimethylsilyl-4-ynyl)oxy>diphenylsilane

: 124044-20-8
tert-Butyl-{(E)-2-[2-(3,3-dimethyl-dihydro-thiophen-2-ylidene)-vinyl]-pent-2-en-4-ynyloxy}-diphenyl-silane

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) tert-butyllithium / 1.) THF, Et₂O, pentane, -120 deg C, 2.) THF, Et₂O, pentane, from -120 to -40 deg C, 3 h

2: 1.) lithium diisopropylamide, anhydr. cesium(III) chloride / 1.) THF, -78 deg C, 30 min, 2.) THF, -78 deg C, 30 min

3: 70 percent / NaH / tetrahydrofuran; methanol / 4 h / 0 °C

4: 90 percent / 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 4-(dimethylamino)pyridine / CH₂Cl₂ / 0.5 h / 0 °C

5: 82 percent / tributylphosphine / 1,2-dimethoxy-ethane; H₂O / 0.5 h / 0 °C

6: 1,4-cyclohexadiene / dimethylsulfoxide-d6; CD₂Cl₂ / 0.5 h / 0 - 10 °C

With dmap; tributylphosphine; cyclohexa-1,4-diene; cerium(lll) chloride; tert.-butyl lithium; sodium hydride; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; lithium diisopropyl amide; In tetrahydrofuran; methanol; 1,2-dimethoxyethane; dimethylsulfoxide-d6; dichloromethane; dichloromethane-d2; water;