Production Method 1

226547-36-0

226547-37-1

107054-64-8

94250-82-5

Reaction Conditions

1.1 Reagents: Lithium bis(trimethylsilyl)amide Solvents: Tetrahydrofuran ;  2 h, -70 °C
1.2 Reagents: Ammonium chloride Solvents: Water
1.3 Reagents: Azobisisobutyronitrile ,  Tributylstannane Solvents: Toluene ;  10 min, reflux

Reference

An improved synthesis of benzocycloalkanone derivatives

Wada, Akimori; Sawada, Kyoko; Ono, Naomi; Ito, Masayoshi, Chemical & Pharmaceutical Bulletin, 2004, 52(1), 132-135

Production Method 2

405200-88-6

197460-64-3

107054-64-8

94250-82-5

Reaction Conditions

1.1 Reagents: Potassium tert-butoxide Solvents: o-Xylene
1.2 Reagents: Ammonium chloride Solvents: Water
1.3 Reagents: Magnesium chloride Solvents: Dimethyl sulfoxide

Reference

Retinoids and related compounds. Part 26. Synthesis of (11Z)-8,18-propano- and methano-retinals and conformational study of the rhodopsin chromophore

Wada, Akimori; Tsutsumi, Masako; Inatomi, Yuka; Imai, Hiroo; Shichida, Yoshinori; et al, Journal of the Chemical Society, 2001, (19), 2430-2439

8,8-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-2-one Raw materials

• Acetic acid, 2-[2,2-dimethyl-6-[2-(phenylsulfonyl)ethyl]cyclohexylidene]-, ethyl ester
• Ethyl 6,6-dimethyl-2-[2-(phenylsulfonyl)ethyl]-1-cyclohexene-1-acetate
• Ethyl (2E)-2-(2-ethoxy-2-oxoethylidene)-3,3-dimethylcyclohexanepropanoate
• Ethyl 2-(2-ethoxy-2-oxoethyl)-3,3-dimethyl-1-cyclohexene-1-propanoate

8,8-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-2-one Preparation Products

• 8,8-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-2-one (107054-64-8)
• 8,8-dimethyl-5,6,7,8-tetrahydronaphthalen-2-ol (94250-82-5)

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