2'-(phenylseleno)dihydrocatalpalactone

Base Information

Chemical Name:2'-(phenylseleno)dihydrocatalpalactone
CAS No.:82027-10-9
Molecular Formula:C₂₁H₂₀O₄Se
Molecular Weight:415.347
Hs Code.:

Synonyms:2'-(phenylseleno)dihydrocatalpalactone

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Chemical Property of 2'-(phenylseleno)dihydrocatalpalactone

Chemical Property:

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MSDS Files:: SDS file from LookChem

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Technology Process of 2'-(phenylseleno)dihydrocatalpalactone

There total 12 articles about 2'-(phenylseleno)dihydrocatalpalactone 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: 50.0%

: 5707-04-0
Phenylselenyl chloride

: 133591-11-4
2-[6,6-Dimethyl-2-oxo-dihydro-pyran-(3E)-ylidenemethyl]-benzoic acid

: 82027-10-9
2'-(phenylseleno)dihydrocatalpalactone

Guidance literature:: With pyridine; In dichloromethane; for 18h; Ambient temperature;

Reference yield:

: 19895-34-2
5,6-dihydro-6,6-dimethyl-2H-pyran-2-one

: 82027-10-9
2'-(phenylseleno)dihydrocatalpalactone

Guidance literature:: Multi-step reaction with 3 steps

1: 98 percent / H₂ / 10percent Pd/C / ethanol / 760 Torr / Ambient temperature

2: 1.) 2,2,6,6-tetramethylpiperidine, n-butyllithium / 1.) THF, from -78 deg C to RT, 30 min, 2.) THF, -78 deg C, 1 h

3: 1.) lithium 2,2,6,6-tetramethylpiperidide, hexamethylphosphoric triamide / 1.) THF, from -78 deg C to RT, 2.) THF, room temp., 30 min

With 2,2,6,6-tetramethyl-piperidine; N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; 2,2,6,6-tetramethylpiperidinyl-lithium; hydrogen; palladium on activated charcoal; In ethanol;
DOI:10.1021/jo00137a030

Reference yield:

: 6940-49-4
3-Bromophthalide

: 82027-10-9
2'-(phenylseleno)dihydrocatalpalactone

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) lithium diisopropylamide (LDA) / 1.) THF, from -78 deg C to RT, 2.) THF, reflux, 17.5 h

2: 1.) lithium 2,2,6,6-tetramethylpiperidide, hexamethylphosphoric triamide / 1.) THF, from -78 deg C to RT, 2.) THF, room temp., 30 min

With N,N,N,N,N,N-hexamethylphosphoric triamide; 2,2,6,6-tetramethylpiperidinyl-lithium; lithium diisopropyl amide;
DOI:10.1021/jo00137a030