cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester

Base Information

• Chemical Name: cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester
• CAS No.: 291521-85-2
• Molecular Formula: C₁₅H₁₁N₃O₄S₂
• Molecular Weight: 361.402

Synonyms:cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester

Chemical Property of cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester

Chemical Property:

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Technology Process of cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester

There total 1 articles about cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-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: 70.0%

carbon disulfide (75-15-0,12122-00-8) + 4,4-dibromo-1-phenylpyrazolidine-3,5-dione (132214-59-6) + ethyl 2-cyanoacetate (105-56-6) → cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester (291521-85-2)

Guidance literature:

carbon disulfide; ethyl 2-cyanoacetate; With tetrabutylammomium bromide; potassium carbonate; In 1,4-dioxane; at 60 ℃; for 0.666667h;

4,4-dibromo-1-phenylpyrazolidine-3,5-dione; In 1,4-dioxane; at 40 ℃; for 6h;

DOI:10.1080/10426500008043678

Reference yield: 58.0%

1-phenyl-pyrazolidine-3,5-dione (19933-22-3) + cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester (291521-85-2) → C22H13N5O5S2

Guidance literature:

With piperidine; In 1,4-dioxane; for 5h; Heating;

DOI:10.1080/10426500008043678

Reference yield: 56.0%

mercaptoacetic acid (68-11-1) + cyano-(5,8-dioxo-6-phenyl-1,3-dithia-6,7-diaza-spiro[3.4]oct-2-ylidene)-acetic acid ethyl ester (291521-85-2) → 4-cyano-3,8,11-trioxo-9-phenyl-1,6,12-trithia-9,10-diaza-dispiro[4.1.4.1]dodecane-4-carboxylic acid ethyl ester

Guidance literature:

With pyridine; for 12h; Heating;

DOI:10.1080/10426500008043678

upstream raw materials:

carbon disulfide

4,4-dibromo-1-phenylpyrazolidine-3,5-dione

ethyl 2-cyanoacetate

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