2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

Base Information

Chemical Name:2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran
CAS No.:1372625-05-2
Molecular Formula:C₃₂H₄₆OSi
Molecular Weight:474.802
Hs Code.:

Synonyms:2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

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Technology Process of 2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

There total 6 articles about 2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran 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: 57.0%

: 1372625-17-6
2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-methoxy-2H-1-benzopyran

: 4294-57-9
para-methylphenylmagnesium bromide

: 1372625-05-2
2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

Guidance literature:: With bis(tricyclohexylphosphine)nickel(II) dichloride; tricyclohexylphosphine; In di-isopropyl ether; at 20 - 60 ℃; for 16h; Inert atmosphere;
DOI:10.1021/ja301588z

Reference yield:

: 1188296-81-2
1-(1,2-dichloroethenyloxy)-4-methoxybenzene

: 1372625-05-2
2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

Guidance literature:: Multi-step reaction with 3 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 1.17 h / -78 - 20 °C / Inert atmosphere

1.2: 16 h / -78 - 20 °C / Inert atmosphere

2.1: palladium diacetate; zinc; tricyclohexylphosphine / toluene / 6 h / 90 °C / Inert atmosphere

3.1: bis(tricyclohexylphosphine)nickel(II) dichloride; tricyclohexylphosphine / di-isopropyl ether / 16 h / 20 - 60 °C / Inert atmosphere

With n-butyllithium; bis(tricyclohexylphosphine)nickel(II) dichloride; palladium diacetate; zinc; tricyclohexylphosphine; In tetrahydrofuran; hexane; di-isopropyl ether; toluene;
DOI:10.1021/ja301588z

Reference yield:

: 150-76-5
4-methoxy-phenol

: 1372625-05-2
2-(Z)-triisopropylsilylmethylidene-3,4-dipropyl-6-(4-tolyl)-2H-1-benzopyran

Guidance literature:: Multi-step reaction with 4 steps

1.1: sodium hydroxide / dimethyl sulfoxide / 20 °C / Inert atmosphere

2.1: n-butyllithium / diethyl ether; hexane / 1.5 h / -78 - -40 °C / Inert atmosphere

2.2: 17 h / -78 - 20 °C / Inert atmosphere

3.1: palladium diacetate; zinc; tricyclohexylphosphine / toluene / 6 h / 90 °C / Inert atmosphere; Sealed tube

4.1: tricyclohexylphosphine; bis(tricyclohexylphosphine)nickel(II) dichloride / di-isopropyl ether / 16 h / 60 °C / Inert atmosphere

With n-butyllithium; bis(tricyclohexylphosphine)nickel(II) dichloride; palladium diacetate; sodium hydroxide; zinc; tricyclohexylphosphine; In diethyl ether; hexane; di-isopropyl ether; dimethyl sulfoxide; toluene;
DOI:10.1246/bcsj.20150180