(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

Base Information

Chemical Name:(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}
CAS No.:278175-34-1
Molecular Formula:C₁₉H₂₁NO₂
Molecular Weight:295.381
Hs Code.:

Synonyms:(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

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

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Chemical Property of (1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

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Technology Process of (1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

There total 7 articles about (1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]} 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: 55.0%

: 542-92-7,25568-84-7,7313-32-8
cyclopenta-1,3-diene

: 228717-14-4
(6S)-6-isopropyl-3-methylene-5-phenyl-3,6-dihydro-2H-1,4-oxazin-2-one

: 278175-34-1
(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

Guidance literature:: In toluene; at 20 ℃; for 3h;
DOI:10.1021/jo991736l

Reference yield:

: 17407-55-5
(S)-2-Hydroxy-3-methylbutanoic acid

: 278175-34-1
(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

Guidance literature:: Multi-step reaction with 7 steps

1: 75 percent / DCC; BtOH; iPr₂NEt / tetrahydrofuran / -20 - 20 °C

2: 70 percent / tetrahydrofuran; diethyl ether / 0 - 20 °C

3: 80 percent / DCC; DMAP / CH₂Cl₂ / 20 °C

4: HCl / ethyl acetate / 1 h

5: Me₃N / CH₂Cl₂ / 1 h

6: CH₂Cl₂ / 20 °C

7: 55 percent / toluene / 3 h / 20 °C

With hydrogenchloride; dmap; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; dicyclohexyl-carbodiimide; trimethylamine; In tetrahydrofuran; diethyl ether; dichloromethane; ethyl acetate; toluene; 1: Substitution / 2: Grignard reaction / 3: Esterification / 4: Boc-deprotection / 5: Cyclization / 6: Condensation / 7: Cycloaddition;
DOI:10.1021/jo991736l

Reference yield:

: 97551-20-7
S-(+)-1-phenyl-2-hydroxy-3-methylbutanone

: 278175-34-1
(1S,2R,4S,6'S)-bicyclo[2.2.1]hept-5-en-2-spiro{3[6'-isopropyl-5'-phenyl-3',6'-dihydro-2'H-1',4'-oxazin-2'-one]}

Guidance literature:: Multi-step reaction with 5 steps

1: 80 percent / DCC; DMAP / CH₂Cl₂ / 20 °C

2: HCl / ethyl acetate / 1 h

3: Me₃N / CH₂Cl₂ / 1 h

4: CH₂Cl₂ / 20 °C

5: 55 percent / toluene / 3 h / 20 °C

With hydrogenchloride; dmap; dicyclohexyl-carbodiimide; trimethylamine; In dichloromethane; ethyl acetate; toluene; 1: Esterification / 2: Boc-deprotection / 3: Cyclization / 4: Condensation / 5: Cycloaddition;
DOI:10.1021/jo991736l