Technology Process of (4aS,6aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12b-octahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthene
There total 20 articles about (4aS,6aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12b-octahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthene 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:
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682744-27-0
(1S,4aS,8aS)-1-[(3,4-dibenzyloxy-2-chloro-6-hydroxyphenyl)-hydroxymethyl]-3H-2-methylene-1,4,4a,5,6,7,8,8a-octahydro-5,5,8a-trimethylnaphthalene
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765950-78-5
(4aS,6aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12b-octahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthene
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682744-29-2
(4aS,6aS,12aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthen-12-ol
- Guidance literature:
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With
tin(IV) chloride;
In
dichloromethane;
at -78 ℃;
for 4h;
DOI:10.1021/jo0491399
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765950-78-5
(4aS,6aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12b-octahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthene
- Guidance literature:
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Multi-step reaction with 11 steps
1.1: 30 percent / LiAlH4 / tetrahydrofuran / 4 h / 25 °C
2.1: 91 percent / LiAlH4 / tetrahydrofuran / 3 h
3.1: 90 percent / lead tetraacetate / benzene / 4 h / 25 °C
4.1: 97 percent / LiALH4 / diethyl ether / 1 h / 20 °C
5.1: 98 percent / imidazole / dimethylformamide / 2 h / 25 °C
6.1: 45 percent / triethylamine; methanesulfonyl chloride / tetrahydrofuran / 4 h / 25 °C
7.1: 93 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 0.25 h / 25 °C
8.1: 91 percent / Dess-Martin periodinane / CH2Cl2 / 2 h / 25 °C
9.1: t-BuLi / pentane; diethyl ether / 0.5 h / -78 °C
9.2: 89 percent / pentane; diethyl ether / 2 h / -78 °C
10.1: 93 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 4 h / 0 °C
11.1: 56 percent / SnCl4 / CH2Cl2 / 4 h / -78 °C
With
1H-imidazole; lead(IV) acetate; lithium aluminium tetrahydride; tetrabutyl ammonium fluoride; tert.-butyl lithium; tin(IV) chloride; Dess-Martin periodane; methanesulfonyl chloride; triethylamine;
In
tetrahydrofuran; diethyl ether; dichloromethane; N,N-dimethyl-formamide; pentane; benzene;
DOI:10.1021/jo0491399
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564-20-5,1216-84-8,30450-17-0,58976-28-6,64090-92-2,67844-42-2,79768-41-5,79768-42-6,86688-27-9,86688-28-0,95406-08-9,98719-44-9,98719-46-1,131831-65-7,140851-80-5
(3aR)-(+)-sclareolide
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765950-78-5
(4aS,6aS,12bS)-2H-9,10-dibenzyloxy-11-chloro-1,3,4,4a,5,6,6a,12b-octahydro-6a-[(phenylseleno)methyl]-4,4,12b-trimethyl-benzo[a]xanthene
- Guidance literature:
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Multi-step reaction with 12 steps
1.1: LDA / tetrahydrofuran / 1 h / -78 °C
1.2: 65.6 percent / MoO5*pyridine*HMPA / tetrahydrofuran / 0.5 h / -78 °C
2.1: 30 percent / LiAlH4 / tetrahydrofuran / 4 h / 25 °C
3.1: 91 percent / LiAlH4 / tetrahydrofuran / 3 h
4.1: 90 percent / lead tetraacetate / benzene / 4 h / 25 °C
5.1: 97 percent / LiALH4 / diethyl ether / 1 h / 20 °C
6.1: 98 percent / imidazole / dimethylformamide / 2 h / 25 °C
7.1: 45 percent / triethylamine; methanesulfonyl chloride / tetrahydrofuran / 4 h / 25 °C
8.1: 93 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 0.25 h / 25 °C
9.1: 91 percent / Dess-Martin periodinane / CH2Cl2 / 2 h / 25 °C
10.1: t-BuLi / pentane; diethyl ether / 0.5 h / -78 °C
10.2: 89 percent / pentane; diethyl ether / 2 h / -78 °C
11.1: 93 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 4 h / 0 °C
12.1: 56 percent / SnCl4 / CH2Cl2 / 4 h / -78 °C
With
1H-imidazole; lead(IV) acetate; lithium aluminium tetrahydride; tetrabutyl ammonium fluoride; tert.-butyl lithium; tin(IV) chloride; Dess-Martin periodane; methanesulfonyl chloride; triethylamine; lithium diisopropyl amide;
In
tetrahydrofuran; diethyl ether; dichloromethane; N,N-dimethyl-formamide; pentane; benzene;
DOI:10.1021/jo0491399