Ethyl 4-formylbenzoate → Ethyl-p-((E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propenyl)benzoate

HRID 2286085Notes

Reaction equation

HRID 2286085 reaction equation
[Br-].[CH3:2][C:3]1([CH3:36])[CH2:12][CH2:11][C:10]([CH3:14])([CH3:13])[C:9]2[CH:8]=[C:7]([CH:15]([P+](C3C=CC=CC=3)(C3C=CC=CC=3)C3C=CC=CC=3)[CH3:16])[CH:6]=[CH:5][C:4]1=2.[CH2:37]([O:39][C:40]([C:42]1[CH:49]=[CH:48][C:45]([CH:46]=O)=[CH:44][CH:43]=1)=[O:41])[CH3:38]>>[CH2:37]([O:39][C:40](=[O:41])[C:42]1[CH:49]=[CH:48][C:45](/[CH:46]=[C:15](/[C:7]2[CH:6]=[CH:5][C:4]3[C:3]([CH3:36])([CH3:2])[CH2:12][CH2:11][C:10]([CH3:13])([CH3:14])[C:9]=3[CH:8]=2)\[CH3:16])=[CH:44][CH:43]=1)[CH3:38]

Participants

3

Reactant 2

HCID 80498Ethyl 4-formylbenzoateHCID 11238302Triphenyl(1-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethyl)phosphonium bromide

Product 1

HCID 6437076Ethyl-p-((E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propenyl)benzoate

Procedure

In a manner analogous to that described in Example 1, from [1-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)ethyl]-triphenylphosphonium bromide and 4-ethoxycarbonylbenzaldehyde there can be obtained p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)propenyl]-benzoic acid ethyl ester of melting point 90°-91° C.

Sources & evidence

ORD record
ord-301b0179dbdf421199cfe86744c44a44
Source dataset
uspto-grants-1982_04
Patent number
US04326055

Reaction notes

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