Home Cart Sign in  
Chemical Structure| 623564-49-8 Chemical Structure| 623564-49-8

Structure of 623564-49-8

Chemical Structure| 623564-49-8

*Storage: {[sel_prStorage]}

*Shipping: {[sel_prShipping]}

,{[proInfo.pro_purity]}

4.5 *For Research Use Only !

{[proInfo.pro_purity]}
Cat. No.: {[proInfo.prAm]} Purity: {[proInfo.pro_purity]}

Change View

Size Price VIP Price

US Stock

Global Stock

In Stock
{[ item.pr_size ]} Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price, item.vip_usd) ]}

US Stock: ship in 0-1 business day
Global Stock: ship in 5-7 days

  • {[ item.pr_size ]}

In Stock

- +

Please Login or Create an Account to: See VIP prices and availability

US Stock: ship in 0-1 business day
Global Stock: ship in 2 weeks

  • 1-2 Day Shipping
  • High Quality
  • Technical Support
Product Citations

Alternative Products

Product Details of [ 623564-49-8 ]

CAS No. :623564-49-8
Formula : C8H12N2O
M.W : 152.19
SMILES Code : OCC1=NN2CCCCC2=C1
MDL No. :MFCD09056842

Safety of [ 623564-49-8 ]

Application In Synthesis of [ 623564-49-8 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 623564-49-8 ]

[ 623564-49-8 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 307307-84-2 ]
  • [ 623564-49-8 ]
YieldReaction ConditionsOperation in experiment
95% Step 3: (4. 5, 6, 7-Tetrahvdropyrazolof1. 5-alpyridin-2-vl) methanol; MeOH (0.29 mL) was added to the THF (19 mL) solution of LiBH4 (cont. 90%) (174 mg) under a nitrogen atmosphere at room temperature, then 4,5, 6,7- tetrahydropyrazolo [1,5-a] pyridine-2-carboxylic acid ethyl ester (862 mg) was added to the suspension and stirred for 1 h at room temperature and 1.5 h at 40 C. The mixture was quenched with 1 mol/L HCI at pH 1 and stirred for 1 h at room temperature. Solid K2CO3 was added to the solution to adjust pH to 8 and the mixture was extracted with AcOEt. The organic layer was dried (MgS04) and filtered. The filtrate was concentrated under reduced pressure to afford titled compound as pale yellow oil (691 mg, 95%). 1H NMR (CDCI3) 8 1. 80-1.87 (m, 2H), 1.98-2. 05 (m, 2H), 2.77 (t, 2H, J = 6.4 Hz), 2.81-2. 84 (br, 1H), 4.09 (t, 2H, J = 6.1 Hz), 4.62 (d, 2H, J = 5.3 Hz), 5.96 (s, 1H).
95% With hydrogenchloride; lithium borohydride; potassium carbonate; In tetrahydrofuran; methanol; Step 3 (4,5,6,7-Tetrahydropyrazolo[1,5-a]pyridin-2-yl)methanol MeOH (0.29 mL) was added to the THF (19 mL) solution of LiBH4 (cont. 90%) (174 mg) under a nitrogen atmosphere at room temperature, then <strong>[307307-84-2]4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-2-carboxylic acid ethyl ester</strong> (862 mg) was added to the suspension and stirred for 1 h at room temperature and 1.5 h at 40 C. The mixture was quenched with 1 mol/L HCl at pH 1 and stirred for 1 h at room temperature. Solid K2CO3 was added to the solution to adjust pH to 8 and the mixture was extracted with AcOEt. The organic layer was dried (MgSO4) and filtered. The filtrate was concentrated under reduced pressure to afford titled compound as pale yellow oil (691 mg, 95%). 1H NMR (CDCl3) delta 1.80-1.87 (m, 2H), 1.98-2.05 (m, 2H), 2.77 (t, 2H, J=6.4 Hz), 2.81-2.84 (br, 1H), 4.09 (t, 2H, J=6.1 Hz), 4.62 (d, 2H, J=5.3 Hz), 5.96 (s, 1H).
95% Step 3: (4, 5, 6, 7-Tetrahvdropvrazolof1, 5-alpyridin-2-vl) methanol MeOH (0.29 mL) was added to the THF (19 mL) solution of LiBH4 (cont. 90%) (174 mg) under a nitrogen atmosphere at room temperature, then 4,5, 6,7- tetrahydropyrazolo [1,5-a] pyridine-2-carboxylic acid ethyl ester (862 mg) was added to the suspension and stirred for 1 h at room temperature and 1.5 h at 40 C. The mixture was quenched with 1 mol/L HCI at pH 1 and stirred for 1 h at room temperature. Solid K2CO3 was added to the solution to adjust pH to 8 and the mixture was extracted with AcOEt. The organic layer was dried (MgS04) and filtered. The filtrate was concentrated under reduced pressure to afford titled compound as pale yellow oil (691 mg, 95%). 'H NMR (CDCI3) 8 1. 80-1.87 (m, 2H), 1.98-2. 05 (m, 2H), 2.77 (t, 2H, J = 6.4 Hz), 2.81-2. 84 (br, 1H), 4.09 (t, 2H, J= 6.1 Hz), 4.62 (d, 2H, J= 5.3 Hz), 5.96 (s, 1H).
95% MeOH (0.29 mL) was added to the THF. (19 mL) solution of LiBH4 (cont. 90%) (174 mg) under a nitrogen atmosphere at room temperature, then <strong>[307307-84-2]4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-2-carboxylic acid ethyl ester</strong> (862 mg) was added to the suspension and stirred for 1 h at room temperature and 1.5 h at 40 C. The mixture was quenched with 1 mol/L HCl at pH 1 and stirred for 1 h at room temperature. Solid K2CO3 was added to the solution to adjust pH to 8 and the mixture was extracted with AcOEt. The organic layer was dried (MgSO4) and filtered. The filtrate was concentrated under reduced pressure to afford titled compound as pale yellow oil (691 mg, 95%). 1H NMR (CDCl3) delta1.80-1.87 (m, 2H), 1.98-2.05 (m, 2H), 2.77 (t, 2H, J=6.4 Hz), 2.81-2.84 (br, 1H), 4.09 (t, 2H, J=6.1 Hz), 4.62 (d, 2H, J=5.3 Hz), 5.96 (s, 1H).

  • 2
  • [ 307313-03-7 ]
  • [ 623564-49-8 ]
YieldReaction ConditionsOperation in experiment
92% With lithium aluminium tetrahydride; In tetrahydrofuran; at 20℃; for 5h;Cooling with ice; Inert atmosphere; Under ice bath conditions, the starting material <strong>[307313-03-7]4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-2-carboxylic acid</strong> (500mg, 3.0mmol) was dissolved in 10mL of tetrahydrofuran. Under the protection of argon, LiAlH4 (228mg, 6.0mmol) was added in batches, and then heated to room temperature to react for 5 hours. LC-MS detected that the reaction was complete. Add 4.0g Na2SO4.10H2O to the reaction solution, then stir at room temperature for 1 hour, filter, and concentrate to dryness under reduced pressure to obtain the product (4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-yl) Methanol (420mg, P: 88%, Y: 92%)
 

Historical Records

Technical Information

Categories