9H-xanthen-9-ylidenepropanedinitrile

Base Information

• Chemical Name: 9H-xanthen-9-ylidenepropanedinitrile
• CAS No.: 6048-49-3
• Molecular Formula: C18H18IN3O3
• Molecular Weight: 244.2475
• Mol file: 6048-49-3.mol

Synonyms:

Chemical Property of 9H-xanthen-9-ylidenepropanedinitrile

Chemical Property:

• Vapor Pressure: 1.21E-06mmHg at 25°C
• Boiling Point: 401.1°Cat760mmHg
• Flash Point: 163.4°C
• Density: 1.314g/cm³

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 9H-xanthen-9-ylidenepropanedinitrile

There total 6 articles about 9H-xanthen-9-ylidenepropanedinitrile 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: 11.0%

9-(9'H-fluoren-9'-ylidene)-9H-xanthene (27090-15-9) + malononitrile (109-77-3) → xanthen-9-ylidene-malononitrile (6048-49-3) + 9-(9-Fluorenyl)xanthen (88799-10-4)

Guidance literature:

at 210 - 220 ℃; for 2h;

Reference yield: 8.0%

2-(9-xanthylidene)indane-1,3-dione (1807-62-1) + malononitrile (109-77-3) → xanthen-9-ylidene-malononitrile (6048-49-3) + 2-(9-dicyanomethyl-9-xanthyl)indane-1,3-dione (87688-46-8)

Guidance literature:

In pyridine; at 20 ℃; for 12h;

DOI:10.1016/S0040-4020(01)91970-2

Reference yield:

xanthen-9-yl-malononitrile (6235-15-0) + 4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium → xanthen-9-ylidene-malononitrile (6048-49-3) + 1-hydroxy-2,2,6,6-tetramethyl-4-acetamidopiperidine

Guidance literature:

xanthen-9-yl-malononitrile; With potassium hydride; In acetonitrile; at 20 ℃; for 0.333333h; Inert atmosphere; Glovebox;

4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium; In acetonitrile; at 24.84 ℃; Thermodynamic data; Inert atmosphere; Glovebox;

DOI:10.1021/jo4010926

upstream raw materials:

2-(9-xanthylidene)indane-1,3-dione

malononitrile

9-(9'H-fluoren-9'-ylidene)-9H-xanthene

4,4',5,6,7-pentachlorospiro<1,3-benzodioxole-2,9'-<9H>xanthene>

Downstream raw materials:

2,4,6-tris(4-methoxyphenyl)-2,4,6-trisulfanylene-1,3,5,2,4,6-trioxatriphosphinane

Refernces

• 1、 Zeid, Ibrahim,El-Sakka, Ibrahim,Yassin, Salah,Abass, Atif. "Reactions of 4-Chloro-9H-xanthene-9-thione with Tetrachloro-o-benzoquinone". . p. 196 - 198. Retrieved 2007/10/02.
• 2、 Schoenberg, Alexander,Singer, Erich,Stephan, Werner. "C = C Double Bonds with Extreme Reactivity, III. Reactions of 9-(9-Fluorenylidene)xanthene". . p. 3762 - 3765. Retrieved 2007/10/02.