5H-Cyclopenta[b]pyrylium, 6,7-dihydro-2,4-diphenyl-, perchlorate

Base Information

• Chemical Name: 5H-Cyclopenta[b]pyrylium, 6,7-dihydro-2,4-diphenyl-, perchlorate
• CAS No.: 21016-30-8
• Molecular Formula: C20H17O.ClO4
• Molecular Weight: 372.805
• Mol file: 21016-30-8.mol

Synonyms:

Chemical Property of 5H-Cyclopenta[b]pyrylium, 6,7-dihydro-2,4-diphenyl-, perchlorate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 5H-Cyclopenta[b]pyrylium, 6,7-dihydro-2,4-diphenyl-, perchlorate

There total 2 articles about 5H-Cyclopenta[b]pyrylium, 6,7-dihydro-2,4-diphenyl-, perchlorate 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: 30.0%

cyclopentanone (120-92-3) + 1,3-diphenyl-propen-3-one (614-47-1) → 2,4-Diphenyl-5,6-dihydrocyclopenta pyrylium perchlorate (21016-30-8)

Guidance literature:

With perchloric acid; acetic anhydride; In diethyl ether; at 0 ℃; for 5h;

DOI:10.1021/jo00332a013

Reference yield:

2-(3-oxo-1,3-diphenylpropyl)cyclopentanone (39745-17-0) → 2,4-Diphenyl-5,6-dihydrocyclopenta pyrylium perchlorate (21016-30-8)

Guidance literature:

With perchloric acid; diethyl ether; acetic anhydride;

DOI:10.1080/09500690010025076

Reference yield: 96.0%

2,4-Diphenyl-5,6-dihydrocyclopenta pyrylium perchlorate (21016-30-8) + ((E)-3-Chloro-3-phenyl-allylidene)-dimethyl-ammonium (109057-89-8) → 7-[(E)-3-Chloro-3-phenyl-prop-2-en-(E)-ylidene]-2,4-diphenyl-6,7-dihydro-5H-cyclopenta[b]pyranylium; perchlorate

Guidance literature:

upstream raw materials:

2-(3-oxo-1,3-diphenylpropyl)cyclopentanone

cyclopentanone

1,3-diphenyl-propen-3-one

Downstream raw materials:

2,4-diphenyl-6,7-dihidro-5H-cyclopentapyridine

(E)-3-(2,4-Diphenyl-5,6-dihydro-cyclopenta[b]pyran-7-yl)-2-(4-nitro-phenyl)-propenal