benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

Base Information

Chemical Name:benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester
CAS No.:257627-73-9
Molecular Formula:C₁₈H₂₄O₅
Molecular Weight:320.386
Hs Code.:

Synonyms:benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

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Chemical Property of benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

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Technology Process of benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

There total 2 articles about benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl 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: 74.0%

: 93-97-0
benzoic acid anhydride

: 257627-72-8
(1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo[3.2.1]octan-8-ol

: 257627-73-9
benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

Guidance literature:: With pyridine; dmap; at 20 ℃; for 24h;
DOI:10.1021/ol991315q

Reference yield:

: 257627-71-7
(1R,2R,5S,7S,8S)-(2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo[3.2.1]oct-8-yl)-dimethylphenylsilane

: 257627-73-9
benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: Li; NH₃ / tetrahydrofuran; ethanol / 0.17 h / -78 °C

1.2: TBAF / tetrahydrofuran / 1.2 h / 20 °C

1.3: 62 percent / aq. H₂O₂; KHCO₃ / methanol; tetrahydrofuran / 11 h / 20 °C

2.1: 74 percent / DMAP; pyridine / 24 h / 20 °C

With pyridine; dmap; ammonia; lithium; In tetrahydrofuran; ethanol; 1.1: Reduction / 1.2: Substitution / 1.3: Oxidation / 2.1: Acylation;
DOI:10.1021/ol991315q

Reference yield: 72.0%

: 257627-73-9
benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester

: 257627-74-0
benzoic acid (2R,3R,4R,5S)-4-hydroxy-2-hydroxymethyl-2,4,5-trimethyltetra-hydrofuran-3-yl ester

: Benzoic acid (2R,3S,4R,5S)-2-acetoxymethyl-4-hydroxy-2,4,5-trimethyl-tetrahydro-furan-3-yl ester

Guidance literature:: benzoic acid (1R,2R,5S,7S,8S)-2-methoxy-1,2,5,7-tetramethyl-3,6-dioxabicyclo-[3.2.1]oct-8-yl ester; With dihydrogen peroxide; urea; trifluoroacetic anhydride; In dichloromethane; at 20 ℃; for 12h;

With sodium hydrogencarbonate; In water; pH=8.5; Further stages.;
DOI:10.1021/ol991315q