2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

Base Information

Chemical Name:2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one
CAS No.:883252-99-1
Molecular Formula:C₆₁H₅₆N₄O₅
Molecular Weight:925.139
Hs Code.:

Synonyms:2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

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Chemical Property of 2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

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Technology Process of 2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

There total 6 articles about 2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one 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: 84.0%

: 883252-62-8
2-[4-(2-ethylhexyloxy)phenyl]-5-(4-ethynylphenyl)-1,3,4-oxadiazole

: 16218-30-7
2,7-diiodofluoren-9-one

: 883252-99-1
2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

Guidance literature:: With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; In tetrahydrofuran; for 3h; Heating;
DOI:10.1021/ja0577600

Reference yield:

: 4-(1-ethyl-hexyloxy)-benzoyl chloride

: 883252-99-1
2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

Guidance literature:: Multi-step reaction with 5 steps

1: 14.3 g / pyridine / 1 h / 100 °C

2: 94 percent / POCl₃ / Heating

3: 99 percent / CuI; Pd(PPh₃)2Cl₂; Et₃N / tetrahydrofuran / Heating

4: 92 percent / NaOH / toluene

5: 84 percent / CuI; Pd(PPh₃)2Cl₂; Et₃N / tetrahydrofuran / 3 h / Heating

With pyridine; bis-triphenylphosphine-palladium(II) chloride; sodium hydroxide; copper(l) iodide; triethylamine; trichlorophosphate; In tetrahydrofuran; toluene; 3: Sonogashira coupling / 5: Sonogashira coupling;
DOI:10.1021/ja0577600

Reference yield:

: 4-(1-ethylhexyloxy)benzoic acid

: 883252-99-1
2,7-bis-(4-{5-[4-(2-ethyl-hexyloxy)-phenyl]-[1,3,4]oxadiazol-2-yl}-phenylethynyl)-fluoren-9-one

Guidance literature:: Multi-step reaction with 6 steps

1: SOCl₂ / 8 h / Heating

2: 14.3 g / pyridine / 1 h / 100 °C

3: 94 percent / POCl₃ / Heating

4: 99 percent / CuI; Pd(PPh₃)2Cl₂; Et₃N / tetrahydrofuran / Heating

5: 92 percent / NaOH / toluene

6: 84 percent / CuI; Pd(PPh₃)2Cl₂; Et₃N / tetrahydrofuran / 3 h / Heating

With pyridine; bis-triphenylphosphine-palladium(II) chloride; sodium hydroxide; copper(l) iodide; thionyl chloride; triethylamine; trichlorophosphate; In tetrahydrofuran; toluene; 4: Sonogashira coupling / 6: Sonogashira coupling;
DOI:10.1021/ja0577600