(4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one

Base Information

• Chemical Name: (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one
• CAS No.: 72640-13-2
• Molecular Formula: C₁₇H₂₀N₂O
• Molecular Weight: 268.359

Synonyms:(4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one

Chemical Property of (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one

Chemical Property:

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Technology Process of (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one

There total 3 articles about (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-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: 91.0%

(1R,4R)-4,7,7-trimethyl-3-oxo-bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester (22469-70-1) + phenylhydrazine (100-63-0) → (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (72640-13-2)

Guidance literature:

(1R,4R)-4,7,7-trimethyl-3-oxo-bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester; phenylhydrazine; at 100 ℃;

With hydrogenchloride; water; at 100 ℃; for 2.5h;

With sodium hydroxide; In water; pH=6;

Reference yield:

(1R,4R)-4,7,7-trimethyl-3-oxo-bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester (22469-70-1) + phenylhydrazine (100-63-0) → 7,8,8-trimethyl-1-phenyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (72640-13-2)

Guidance literature:

at 140 ℃; Erwaermen des Reaktionsprodukts mit Alkohol und konz. Salzsaeure auf 100grad;

Reference yield:

→ 7,8,8-trimethyl-1-phenyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (72640-13-2)

Guidance literature:

entspr. Ethylester (7), 1) Phenylhydrazin, 2) HBr;

DOI:10.1248/cpb.27.1764

upstream raw materials:

(1R,4R)-4,7,7-trimethyl-3-oxo-bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester

phenylhydrazine

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