成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 3-Furancarboxamide, tetrahydro-
871677-92-8

3-Furancarboxamide, tetrahydro- synthesis

5synthesis methods
-

Yield:871677-92-8 100%

Reaction Conditions:

with ammonia in methanol at 80; for 72 h;

Steps:

Intermediate 4

To a solution of methyl tetrahydrofuran-3-carboxylate (15 g) in ammonia (7 N solution in MeOH, 110 mL) was heated to 80° C. for 72 h.
The reaction mixture was then concentrated and dried under high vacuum to afford tetrahydrofuran-3-carboxamide (15 g, quantitative yield) as an off-white solid. 1H NMR (400 MHz, DMSO-d) δ ppm 7.38 (brs, 1H), 6.87 (brs, 1H), 3.84 (t, J=8.0 Hz, 1H), 3.72-3.62 (m, 3H), 2.92 (m, 1H), 1.98 (m, 2H).

References:

US2018/201610,2018,A1 Location in patent:Paragraph 0076; 0078

14631-44-8 Synthesis
3-FURANCARBONITRILE, TETRAHYDRO-

14631-44-8
94 suppliers
inquiry

165253-31-6 Synthesis
Tetrahydrofuran-3-yl)methanamine

165253-31-6
235 suppliers
$14.00/1g

14631-44-8 Synthesis
3-FURANCARBONITRILE, TETRAHYDRO-

14631-44-8
94 suppliers
inquiry

3-Furanmethanamine, tetrahydro-N-[(tetrahydro-3-furanyl)methyl]-

249760-25-6
0 suppliers
inquiry

165253-31-6 Synthesis
Tetrahydrofuran-3-yl)methanamine

165253-31-6
235 suppliers
$14.00/1g