✦ LIBER ✦

Synthesis and spectroscopic studies of 2-(1,1-dimethylhydrazono)propyl phosphonates

✍ Scribed by Miguel Salazar; Ven-Shun Li; Lindley A. Cates

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 300 KB
Volume: 26
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260260607

No coin nor oath required. For personal study only.

✦ Synopsis

The synthesis of diethyl Z(1,ldimethylhydrazono)propyl phosphonate (1) and its l-benzoyl derivative (2) is described. The 'H and 13C NMR spectra of 1 and 2 have been completely assigned with the aid of two-dimensional 'H-"C correlation NMR spectroscopy. Spectral data for ethyl a-benzoyl-/J-(l,ldimethylhydrazino)crotonate (5) were also obtained.

The results show that 1 exists predominantly in the E-and 2-isomeric forms in a ratio of ca 2: 1, and 2 occurs almost exclusively in the E-form. Data for 5 indicate that this compound exists in the Z-and E-forms in a ratio of cu 3: 1.

📜 SIMILAR VOLUMES

Synthesis of Sphingosine-1-phosphonate a

Synthesis of Sphingosine-1-phosphonate and Homosphingosine-1-phosphonate

✍ Andrej Tarnowski; Oliver Retz; Thomas Bär; Richard R. Schmidt 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB

Synthesis and characterization of rac-1,

Synthesis and characterization of rac-1,2-bis(palmitoyloxy)-3-propyl (2-trimethylarsonioethyl)phosphonate, an arsenic-containing phosphonolipid

✍ Thomas Junk; Giuseppe C Pappalardo; Kurt J Irgolic 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 494 KB 👁 1 views

Arsenic analogs of lecithins (i.e. with replacement of nitrogen by arsenic in the choline group) are probably trace constituents of phospholipids in many organisms. Attempts to synthesize 1,2bis(palmitoy1oxy)-3propyl 2-trimethylarsonioethyl phosphate (arsenolecithin) according to wellestablished pro

ChemInform Abstract: Carbocupration of D

ChemInform Abstract: Carbocupration of Diethyl 1-Alkynyl Phosphonates: Stereo- and Regioselective Synthesis of 1,2,2-Trisubstituted Vinyl Phosphonates.

✍ Jun Mo Gil; Dong Young Oh 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB

Synthesis and nuclear magnetic resonance

Synthesis and nuclear magnetic resonance spectroscopic studies of 1-arylpyrroles

✍ Chang Kiu Lee; Jung Ho Jun; Ji Sook Yu 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 639 KB

## Abstract A series of __m__‐ and __p__‐substituted 1‐phenyl, 1‐benzyl, 1‐benzoyl, and 1‐(2‐phenylethyl)pyrroles was prepared and their ^1^H and ^13^C nmr spectroscopic characteristics were examined. In general, good correlations were observed between the chemical shift values of the βH and the β

ChemInform Abstract: Efficient Synthesis

ChemInform Abstract: Efficient Synthesis of Sphingosine-1-phosphonate and Homo-sphingosine- 1-phosphonate

✍ A. TARNOWSKI; T. BAER; R. R. SCHMIDT 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

Solvent-Free Synthesis of Diphenyl [2-(A

Solvent-Free Synthesis of Diphenyl [2-(Aminocarbonyl)-1,2-dihydroisoquinolin-1-yl]phosphonates from Isoquinoline, Isocyanates, and Diphenyl Phosphonate

✍ Issa Yavari; Anvar Mirzaei; Gholamhossein Khalili 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 135 KB 👁 1 views

## Abstract The 1 : 1 intermediates generated by addition of isoquinoline to isocyanates were trapped by diphenyl phosphonate to yield diphenyl [2‐(aminocarbonyl)‐1,2‐dihydroisoquinolin‐1‐yl]phosphonates in good yields under solvent‐free conditions.