9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

Base Information

Chemical Name:9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>
CAS No.:145095-37-0
Molecular Formula:C₂₃H₃₄O₄SSi
Molecular Weight:434.672
Hs Code.:

9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spiro<bicyclo<3.3.1>nonane-3,2'-<1,3>dioxolane>

Synonyms:9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

Suppliers and Price of 9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

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Chemical Property of 9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

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Technology Process of 9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

There total 6 articles about 9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane> 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:

: 4746-97-8
cyclohexanedione monoethylene ketal

: 145095-37-0
9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

Guidance literature:: Multi-step reaction with 5 steps

1: 1.) lithium tetramethylpiperidide (LiTMP), HMPA / 1.) THF, hexane, from -40 deg C to RT, 2 h, 2.) THF, hexane, a) -15 deg C, b) RT, 8 h

2: 69 percent / MCPBA / CH₂Cl₂ / 0.5 h / 0 °C

3: 91 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU) / acetonitrile / 0.5 h

4: 93 percent / pyridine / 0.5 h

5: 1.) n-BuLi / 1.) THF, 0 deg C, 10 min, 2.) THF, RT, 16 h

With pyridine; N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; 2,2,6,6-tetramethylpiperidinyl-lithium; 1,8-diazabicyclo[5.4.0]undec-7-ene; 3-chloro-benzenecarboperoxoic acid; In dichloromethane; acetonitrile;
DOI:10.1080/00397919208021662

Reference yield:

: 129012-81-3
7-(phenylsulfinyl)-1,4-dioxaspiro<4.5>decan-8-one

: 145095-37-0
9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

Guidance literature:: Multi-step reaction with 3 steps

1: 91 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU) / acetonitrile / 0.5 h

2: 93 percent / pyridine / 0.5 h

3: 1.) n-BuLi / 1.) THF, 0 deg C, 10 min, 2.) THF, RT, 16 h

With pyridine; n-butyllithium; 1,8-diazabicyclo[5.4.0]undec-7-ene; In acetonitrile;
DOI:10.1080/00397919208021662

Reference yield:

: 107288-42-6
7-(phenylthio)-1,4-dioxaspiro[4.5]decan-8-one

: 145095-37-0
9-ethylidene-7-methyl-1-(phenylsulfinyl)-6-(trimethylsilyl)oxy-spirononane-3,2'-<1,3>dioxolane>

Guidance literature:: Multi-step reaction with 4 steps

1: 69 percent / MCPBA / CH₂Cl₂ / 0.5 h / 0 °C

2: 91 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU) / acetonitrile / 0.5 h

3: 93 percent / pyridine / 0.5 h

4: 1.) n-BuLi / 1.) THF, 0 deg C, 10 min, 2.) THF, RT, 16 h

With pyridine; n-butyllithium; 1,8-diazabicyclo[5.4.0]undec-7-ene; 3-chloro-benzenecarboperoxoic acid; In dichloromethane; acetonitrile;
DOI:10.1080/00397919208021662