(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

Base Information

Chemical Name:(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid
CAS No.:221324-51-2
Molecular Formula:C₂₁H₂₄O₄
Molecular Weight:340.419
Hs Code.:

Synonyms:(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

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Chemical Property of (S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

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Technology Process of (S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

There total 9 articles about (S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid 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: 99.0%

: 221324-50-1
benzyl (S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylate

: 221324-51-2
(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: With lithium hydroxide; In tetrahydrofuran; methanol; for 6h; Ambient temperature;
DOI:10.1021/jm980430o

Reference yield: 82.0%

: 69400-39-1
(+) (S)-6-benzyloxy-2,5,7,8-tetramethyl-chroman-2-carbaldhyde

: 221324-51-2
(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: With sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene; In water; tert-butyl alcohol; at 0 ℃; for 2h;
DOI:10.1002/chem.201403768

Reference yield:

: 53101-51-2
(-)-6-benzyloxy-2,5,7,8-tetramethylchromane-2-carboxylic acid

: (+)-6-benzyloxy-2,5,7,8-tetramethylchromane-2-carboxylic acid

: 221324-51-2
(S)-6-(benzyloxy)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid

Guidance literature:: (-)-6-benzyloxy-2,5,7,8-tetramethylchromane-2-carboxylic acid; With (S)-1-phenyl-ethylamine; In isopropyl alcohol; at 10 - 65 ℃; for 5h; Resolution of racemate;

With hydrogenchloride; water; Purification / work up;