[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

Base Information

Chemical Name:[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester
CAS No.:875929-73-0
Molecular Formula:C₃₄H₄₄O₈Si
Molecular Weight:608.804
Hs Code.:

[8-allyloxycarbonyloxy-9-(<i>tert</i>-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

Synonyms:[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

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Chemical Property of [8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

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Technology Process of [8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

There total 5 articles about [8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester 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: 100.0%

: 875929-74-1
[9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-8-oxo-1,4-dioxa-spiro[4.5]dec-7-yl]-acetic acid ethyl ester

: 2937-50-0
Allyl chloroformate

: 875929-73-0
[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

Guidance literature:: [9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-8-oxo-1,4-dioxa-spiro[4.5]dec-7-yl]-acetic acid ethyl ester; With potassium tert-butylate; In tetrahydrofuran; at -78 - -30 ℃; for 2h;

Allyl chloroformate; In tetrahydrofuran; at -78 ℃; for 0.333333h;
DOI:10.1021/ja056980a

Reference yield:

: 875929-65-0
7-(tert-butyl-diphenyl-silanyloxymethyl)-7-methyl-1,4-dioxa-spiro[4.5]decan-8-one

: 875929-73-0
[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: LDA / tetrahydrofuran / 3 h / -78 - -35 °C

1.2: 81 percent / tetrahydrofuran / -78 - 20 °C

2.1: tBuOK / tetrahydrofuran / 2 h / -78 - -30 °C

2.2: 100 percent / tetrahydrofuran / 0.33 h / -78 °C

With potassium tert-butylate; lithium diisopropyl amide; In tetrahydrofuran;
DOI:10.1021/ja056980a

Reference yield:

: 4746-97-8
cyclohexanedione monoethylene ketal

: 875929-73-0
[8-allyloxycarbonyloxy-9-(tert-butyl-diphenyl-silanyloxymethyl)-9-methyl-1,4-dioxa-spiro[4.5]dec-7-en-7-yl]-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1.1: LHMDS / tetrahydrofuran / 0.57 h / -78 °C

1.2: 74 percent / tetrahydrofuran / -78 - 20 °C

2.1: 71 percent / aq. KOH / methanol / 0.75 h / 0 °C

3.1: 80 percent / imidazole / dimethylformamide / 4 h / 20 °C

4.1: LDA / tetrahydrofuran / 3 h / -78 - -35 °C

4.2: 81 percent / tetrahydrofuran / -78 - 20 °C

5.1: tBuOK / tetrahydrofuran / 2 h / -78 - -30 °C

5.2: 100 percent / tetrahydrofuran / 0.33 h / -78 °C

With 1H-imidazole; potassium hydroxide; potassium tert-butylate; lithium hexamethyldisilazane; lithium diisopropyl amide; In tetrahydrofuran; methanol; N,N-dimethyl-formamide;
DOI:10.1021/ja056980a