(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Base Information

Chemical Name:(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol
CAS No.:130200-15-6
Molecular Formula:C₄₀H₆₀O₇S
Molecular Weight:684.978
Hs Code.:

Synonyms:(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Suppliers and Price of (2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of (2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Chemical Property:

Purity/Quality:: 98% ^*data from raw suppliers

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Hazard Codes:

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Technology Process of (2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

There total 5 articles about (2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol 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: 31.0%

: 1888-75-1
isopropyllithium

: 130200-13-4,130200-14-5
(2R,3S,22R)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-25-(p-tolylsulfonyl)-(5α)-26,27-dinorcholesta-23,24-dien-22-ol

: 130200-15-6
(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Guidance literature:: With thien-2-yl(cyano)copper lithium; In tetrahydrofuran; Petroleum ether; at -78 ℃; for 0.5h;
DOI:10.1021/jo00001a089

Reference yield:

: 68819-94-3
p-tolyl benzeneselenosulfonate

: 130200-15-6
(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Guidance literature:: Multi-step reaction with 4 steps

2: 66 percent / Et₃N / toluene / 48 h / Heating

3: 81 percent / tert-butyl hydroperoxide / 2-methyl-propan-2-ol; CHCl₃ / 10 h

4: 31 percent / lithium (2-thienyl)cyanocuprate / tetrahydrofuran; petroleum ether / 0.5 h / -78 °C

With tert.-butylhydroperoxide; thien-2-yl(cyano)copper lithium; triethylamine; In tetrahydrofuran; chloroform; toluene; Petroleum ether; tert-butyl alcohol;
DOI:10.1021/jo00001a089

Reference yield:

: 81481-15-4
(20S)-6,6-ethylenedioxy-2α,3α-isopropylidenedioxy-5α-pregnane-20-carbaldehyde

: 130200-15-6
(2R,3S,22R,23Z)-6,6-(Ethylenedioxy)-2,3-(isopropylidenedioxy)-28-(p-tolylsulfonyl)-(5α)-ergost-23-en-22-ol

Guidance literature:: Multi-step reaction with 4 steps

2: 66 percent / Et₃N / toluene / 48 h / Heating

3: 81 percent / tert-butyl hydroperoxide / 2-methyl-propan-2-ol; CHCl₃ / 10 h

4: 31 percent / lithium (2-thienyl)cyanocuprate / tetrahydrofuran; petroleum ether / 0.5 h / -78 °C

With tert.-butylhydroperoxide; thien-2-yl(cyano)copper lithium; triethylamine; In tetrahydrofuran; chloroform; toluene; Petroleum ether; tert-butyl alcohol;
DOI:10.1021/jo00001a089