WebJun 17, 2002 · On the other hand, dimethyl 1-diazo-2-oxopropyl phosphonate 4 is easier to prepare 14 and alkyne formation (K 2 CO 3, rt, MeOH) 12 avoids the use of strong bases, low temperature and tolerates various functional groups. 15 Using diazophosphonate 3, we obtained alkyne 1a in 60% yield 1b while using 4 we and others obtained yields ranging … WebDimethyl 2-oxopropylphosphonate 95% Synonym (s): Dimethyl acetonylphosphonate Linear Formula: CH3COCH2P (O) (OCH3)2 CAS Number: 4202-14-6 Molecular Weight: 166.11 Beilstein: 1766218 EC …
Dimethyl (1-Diazo-2-oxopropyl)phosphonate - PubChem
WebMandabi 66 chose to perform this transformation using the Bestmann Ohira reagent (dimethyl (1-diazo-2-oxopropyl)phosphonate), 67 resulting in a slightly higher yield than previously reported. Addition of the naphtyl was performed through a modified Heck alkynylation, 68 followed by alkyne oxidation and cyclohexylidene deprotection to afford … WebDiMethyl (1-Diazo-2-oxopropyl)phosphonate. Min.Order: 1 Kilogram FOB Price: USD $ 0.0-0.0/Kilogram Located in Zhengdong New District, Zhengzhou of Henan province, Henan Allgreen Chemical Co.,Ltd is comprehensive high-tech modern enterprises integrating professional R&D, production and sales. buderim orchid show
Methanolysis of Dimethyl (1-Diazo-2-oxopropyl) Phosphonate: …
WebDiethyl and dimethyl (1-diazo-2-oxopropyl)phosphonate 1 and 2 (Scheme 1) are versatile building blocks for organic synthesis. 2 These diazo compounds react via dipolar cycloaddition and other pathways to provide access to diverse classes of nitrogen heterocycles including phosphoryl-substituted pyrazoles, triazolines, oxazoles, and … WebMar 3, 2024 · Reagents and conditions: (a) PyBOP, DIPEA, NaBH 4, THF, 1 h; (b) Dess-Martin periodinane, CH 2 Cl 2, 4 h; (c) dimethyl (1-diazo-2-oxopropyl)phosphonate, K 2 CO 3, MeOH, 0 °C, 2 h, rt, overnight; (d) ... 10 min; (f) dimethyl (1-diazo-2-oxopropyl)phosphonate, K 2 CO 3, MeOH, 0 °C, 4 h; (g) HCl (4 M)/MeOH (3:5), reflux, … WebDimethyl (1-Diazo-2-oxopropyl)phosphonate C5H9N2O4P CID 53397103 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, … cricket 3926189