2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile

Base Information

• Chemical Name: 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile
• CAS No.: 1341125-88-9
• Molecular Formula: C₁₈H₁₉NO₃
• Molecular Weight: 297.354
• Mol file: 1341125-88-9.mol

Synonyms:2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile

Chemical Property of 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile

There total 7 articles about 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile 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: 89.0%

sodium cyanide (773837-37-9) + 3-bromo-2-(4-isopropoxyphenyl)-1-oxaspiro[4.4]non-2-en-4-one (1341125-86-7) → 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile (1341125-88-9)

Guidance literature:

With nickel dibromide; In 1-methyl-pyrrolidin-2-one; at 200 ℃; Sealed vessel; Microwave irradiation;

DOI:10.1055/s-0030-1260115

Reference yield:

1-[3-hydroxy-3-(4-isopropoxyphenyl)prop-1-ynyl]cyclopentanol (1341125-81-2) → 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile (1341125-88-9)

Guidance literature:

Multi-step reaction with 4 steps

1.1: manganese(IV) oxide / dichloromethane / 1.5 h / 20 °C

2.1: water; diethylamine / ethanol / 0.5 h / 20 °C

3.1: bromine / dichloromethane / 0.33 h / 0 °C

3.2: 3 h / 0 - 20 °C

4.1: nickel dibromide / 1-methyl-pyrrolidin-2-one / 200 °C / Sealed vessel; Microwave irradiation

With manganese(IV) oxide; water; bromine; diethylamine; nickel dibromide; In 1-methyl-pyrrolidin-2-one; ethanol; dichloromethane; 4.1: Rosenmund von Braun reaction;

DOI:10.1055/s-0030-1260115

Reference yield:

3-iodo-2-(4-isopropoxyphenyl)-1-oxaspiro[4.4]non-2-en-4-one (1341125-87-8) → 2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile (1341125-88-9)

Guidance literature:

Multi-step reaction with 3 steps

1.1: tetrahydrofuran; hexane / -78 °C

2.1: bromine / dichloromethane / 0.33 h / 0 °C

2.2: 3 h / 0 - 20 °C

3.1: nickel dibromide / 1-methyl-pyrrolidin-2-one / 200 °C / Sealed vessel; Microwave irradiation

With bromine; nickel dibromide; In tetrahydrofuran; 1-methyl-pyrrolidin-2-one; hexane; dichloromethane; 3.1: Rosenmund von Braun reaction;

DOI:10.1055/s-0030-1260115

upstream raw materials:

sodium cyanide

3-bromo-2-(4-isopropoxyphenyl)-1-oxaspiro[4.4]non-2-en-4-one

3-iodo-2-(4-isopropoxyphenyl)-1-oxaspiro[4.4]non-2-en-4-one

1-[3-hydroxy-3-(4-isopropoxyphenyl)prop-1-ynyl]cyclopentanol

Downstream raw materials:

2-(4-isopropoxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carboxylic acid amide

2-(4-hydroxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carbonitrile

2-(4-hydroxyphenyl)-4-oxo-1-oxaspiro[4.4]non-2-ene-3-carboxylic acid amide