4-Hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine

Base Information

• Chemical Name: 4-Hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine
• CAS No.: 77995-54-1
• Molecular Formula: C11H14 N4 S
• Molecular Weight: 234.325
• Hs Code.: 2934999090
• DSSTox Substance ID: DTXSID60351409
• Wikidata: Q82127805
• Mol file: 77995-54-1.mol

Synonyms:77995-54-1;4-hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine;4-hydrazinyl-2-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine;(2-methyl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-yl)hydrazine;4-hydrazinyl-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine;3-Hydrazinyl-5-methyl-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene;Oprea1_715867;DTXSID60351409;CDA99554;MFCD00449101;STK840776;AKOS001063051;3-hydrazinyl-5-methyl-8-thia-4,6-diazatricyclo[7.4.0.0?,?]trideca-1(9),2,4,6-tetraene;CS-0220997;EN300-08102;Z56885139;F0307-0224;4-Hydrazinyl-5,6,7,8-tetrahydro-2-methyl[1]benzothieno[2,3-d]pyrimidine;(2-Methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-yl)hydrazine

Chemical Property of 4-Hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine

Chemical Property:

• Vapor Pressure: 2.18E-06mmHg at 25°C
• Refractive Index: 1.747
• Boiling Point: 393.1°C at 760 mmHg
• Flash Point: 191.5°C
• PSA: 92.07000
• Density: 1.384g/cm³
• LogP: 2.93740
• XLogP3: 2.8
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 1
• Exact Mass: 234.09391764
• Heavy Atom Count: 16
• Complexity: 262

Purity/Quality:

99% ^*data from raw suppliers

4-HYDRAZINO-2-METHYL-5,6,7,8-TETRAHYDRO[1]BENZOTHIENO[2,3-D]PYRIMIDINE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=NC(=C2C3=C(CCCC3)SC2=N1)NN

Technology Process of 4-Hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine

There total 5 articles about 4-Hydrazino-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine 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: 88.0%

4-chloro-2-methyl-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine (81765-97-1) → 4-hydrazinyl-2-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (77995-54-1)

Guidance literature:

With hydrazine hydrate; In ethanol; for 2h; Heating;

Reference yield:

ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (4506-71-2) → 4-hydrazinyl-2-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (77995-54-1)

Guidance literature:

Multi-step reaction with 3 steps

1: 80 percent / HClgas / dioxane / 5 h

2: 68 percent / POCl₃ / 12 h / Heating

3: 88 percent / NH₂NH₂*H₂O / ethanol / 2 h / Heating

With hydrogenchloride; hydrazine hydrate; trichlorophosphate; In 1,4-dioxane; ethanol;

Reference yield:

2-methyl-5,6,7,8-tetrahydrobenzo<4,5>thieno<2,3-d>pyrimidin-4(3H)-one (19819-15-9) → 4-hydrazinyl-2-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (77995-54-1)

Guidance literature:

Multi-step reaction with 2 steps

1: trichlorophosphate / Reflux

2: hydrazine hydrate / water; methanol / 8 h / Reflux

With hydrazine hydrate; trichlorophosphate; In methanol; water;

DOI:10.1016/j.ejmech.2016.07.035

upstream raw materials:

4-chloro-2-methyl-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine

ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

2-methyl-4-hydroxy-5,6,7,8-tetrahydrobenzothieno<2,3-d>pyrimidine

2-methyl-5,6,7,8-tetrahydrobenzo<4,5>thieno<2,3-d>pyrimidin-4(3H)-one

Downstream raw materials:

4-Methyl-7,8,9,10-tetrahydro-6-thia-1,2,3a,5-tetraaza-cyclopenta[c]fluorene

1,2,4-triazolo<2,3-c>-5-methyl-8,9,10,11-tetrahydrobenzothieno<3,2-e>pyrimidine

2,5-dimethyl-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine

3,4-Dimethyl-7,8,9,10-tetrahydro-6-thia-1,2,3a,5-tetraaza-cyclopenta[c]fluorene

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