(2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

Base Information

Chemical Name:(2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester
CAS No.:76221-48-2
Molecular Formula:C₂₇H₄₀O₅
Molecular Weight:444.612
Hs Code.:

Synonyms:(2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

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Chemical Property of (2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

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Technology Process of (2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

There total 12 articles about (2aS,4R,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester 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: 92.0%

: 100-39-0
benzyl bromide

: (2aS,4R,4aS,7aR,7bS)-1,1-Diethoxy-4-hydroxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

: 76221-48-2
(2aS,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

Guidance literature:: With sodium hydride; at 70 ℃; for 5h;
DOI:10.1021/ja00545a031

Reference yield:

: 73011-50-4
1-(4,4-dimethyl-1-cyclopenten-1-yl)ethanone

: 76221-48-2
(2aS,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: lithium diisopropylamide / -78 °C

2: 75 percent / 240 h / 48 °C

3: 96 percent / 3-Angstroem molecular sieves / methanol / 4.5 h / 25 °C

4: 99 percent / lithium triethylborohydride / 0.05 h / 0 °C

5: 92 percent / NaH / 5 h / 70 °C

With 3 A molecular sieve; sodium hydride; lithium triethylborohydride; lithium diisopropyl amide; In methanol;
DOI:10.1021/ja00545a031

Reference yield:

: 76221-44-8
[1-(4,4-Dimethyl-cyclopent-1-enyl)-vinyloxy]-trimethyl-silane

: 76221-48-2
(2aS,4aS,7aR,7bS)-4-Benzyloxy-1,1-diethoxy-6,6-dimethyl-octahydro-cyclobuta[e]indene-7b-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 75 percent / 240 h / 48 °C

2: 96 percent / 3-Angstroem molecular sieves / methanol / 4.5 h / 25 °C

3: 99 percent / lithium triethylborohydride / 0.05 h / 0 °C

4: 92 percent / NaH / 5 h / 70 °C

With 3 A molecular sieve; sodium hydride; lithium triethylborohydride; In methanol;
DOI:10.1021/ja00545a031