1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde

Base Information

• Chemical Name: 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde
• CAS No.: 477352-10-6
• Molecular Formula: C₂₁H₂₃NO₂
• Molecular Weight: 321.419

Synonyms:1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde

Chemical Property of 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde

Chemical Property:

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Technology Process of 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde

There total 2 articles about 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde 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: 14.0%

C21H22N2O (477352-08-2) → 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde (477352-10-6)

Guidance literature:

With diisobutylaluminium hydride; In cyclohexane; toluene; at -78 ℃; for 1.5h;

DOI:10.1021/jm020889p

Reference yield:

C21H25NO2 (398476-28-3) → 1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde (477352-10-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 23 percent / BF₃*Et₂O / CH₂Cl₂ / -25 °C

2: 14 percent / DIBAL / toluene; cyclohexane / 1.5 h / -78 °C

With boron trifluoride diethyl etherate; diisobutylaluminium hydride; In dichloromethane; cyclohexane; toluene;

DOI:10.1021/jm020889p

Reference yield: 33.0%

1'-benzyl-3,4-dihydrospiro[[2]benzopyran-1,4'-piperidine]-3-carbaldehyde (477352-10-6) → C21H25NO2

Guidance literature:

With lithium aluminium tetrahydride; In tetrahydrofuran; diethyl ether; at -15 ℃; for 1h;

DOI:10.1021/jm020889p

upstream raw materials:

C₂₁H₂₂N₂O

C₂₁H₂₅NO₂

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