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 ALPHA-ZEARALENOL
36455-72-8

ALPHA-ZEARALENOL synthesis

3synthesis methods
-

Yield:71030-11-0 58% ,36455-72-8 29%

Reaction Conditions:

with sodium tetrahydroborate in methanol at 0 - 20; for 3 h;Inert atmosphere;

Steps:

Preparation of b- and a-Zearalenols
Toa solution of zearalenone (60.8 mg, 0.19 mmol) in MeOH (1 mL) at 0 °C wasslowly added NaBH4 (32.5 mg, 0.96 mmol, 4.5 equiv). The mixture wasstirred under argon from 0 °C to room temperature for 3 h. The reaction mixturewas then added 5 mL of H2O and extracted with EtOAc (4 × 5 mL). Thecombined organic layers were washed with brine, dried with anhydrous Na2SO4and concentrated in vacuo. Purification of the crude residue by columnchromatography (20% EtOAc/hexanes) gave a mixture of b- and a-zearalenols, whichwere further separated by reverse phase column chromatography using 70% MeOH/H2Oas an eluent to give b-zearalenol (2) and a-zearalenol (18).

References:

Tadpetch, Kwanruthai;Kaewmee, Benyapa;Chantakaew, Kittisak;Kantee, Kawalee;Rukachaisirikul, Vatcharin;Phongpaichit, Souwalak [Bioorganic and Medicinal Chemistry Letters,2016,vol. 26,# 15,p. 3612 - 3616] Location in patent:supporting information

FullText

ALPHA-ZEARALENOL Related Search: