3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

Base Information

Chemical Name:3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one
CAS No.:133721-83-2
Molecular Formula:C₂₇H₂₆O₆S₂
Molecular Weight:510.632
Hs Code.:

Synonyms:3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

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Chemical Property of 3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

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Technology Process of 3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

There total 7 articles about 3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one 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: 96.0%

: 16075-82-4
2,3-Dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

: 39082-53-6
1,1-bis(phenylsulfonyl)ethylene

: 133721-83-2
3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

Guidance literature:: With di(tert-butyl)pyridine; t-butyldimethylsiyl triflate; In chloroform; 1.) 0 deg C, 2 h, 2.) r.t., 3 h;
DOI:10.1002/hlca.19910740106

Reference yield:

: 590-37-4
2-methylpent-4-yn-2-ol

: 133721-83-2
3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

Guidance literature:: Multi-step reaction with 4 steps

1: 1.) (i-Pr)MgCl / 1.) THF, r.t., 5 h, 2.) -40 deg C, 30 min, then 0 deg C, 2 h

2: MnO₂ / CH₂Cl₂ / 1.) 0 deg C, 1 h, 2.) r.t., 30 min

3: 87.3 percent / 33 percent HBr/AcOH / CH₂Cl₂ / 1.) 0 deg C, 30 min, 2.) r.t., 4-10 h

4: 96 percent / di(tert-butyl)pyridine, (tert-butyl)dimethylsilyl trifluoromethanesulfonate / CHCl₃ / 1.) 0 deg C, 2 h, 2.) r.t., 3 h

With manganese(IV) oxide; di(tert-butyl)pyridine; t-butyldimethylsiyl triflate; hydrogen bromide; isopropylmagnesium chloride; acetic acid; In dichloromethane; chloroform;
DOI:10.1002/hlca.19910740106

Reference yield:

: 40485-33-4
5-Hydroxy-5-methylhex-2-ynophenone

: 133721-83-2
3-<2,2-Bis(phenylsulfonyl)ethyl>-2,3-dihydro-2,2-dimethyl-6-phenyl-4H-pyran-4-one

Guidance literature:: Multi-step reaction with 2 steps

1: 87.3 percent / 33 percent HBr/AcOH / CH₂Cl₂ / 1.) 0 deg C, 30 min, 2.) r.t., 4-10 h

2: 96 percent / di(tert-butyl)pyridine, (tert-butyl)dimethylsilyl trifluoromethanesulfonate / CHCl₃ / 1.) 0 deg C, 2 h, 2.) r.t., 3 h

With di(tert-butyl)pyridine; t-butyldimethylsiyl triflate; hydrogen bromide; acetic acid; In dichloromethane; chloroform;
DOI:10.1002/hlca.19910740106