BIS(DIMETHYLVINYLENE) PYROPHOSPHATE
BIS(DIMETHYLVINYLENE) PYROPHOSPHATE Basic information
- Product Name:
- BIS(DIMETHYLVINYLENE) PYROPHOSPHATE
- Synonyms:
-
- BIS(DIMETHYLVINYLENE) PYROPHOSPHATE
- Bis(4,5-dimethyl-2-oxo-1,3,2-dioxaphospholenyl) Oxide
- 1,3,2-Dioxaphosphole, 2,2'-oxybis[4,5-dimethyl-, 2,2'-dioxide
- CAS:
- 55894-94-5
- MF:
- C8H12O7P2
- MW:
- 282.12
- Mol File:
- 55894-94-5.mol
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BIS(DIMETHYLVINYLENE) PYROPHOSPHATE Chemical Properties
- Boiling point:
- 308.0±25.0 °C(Predicted)
- Density
- 1.46±0.1 g/cm3(Predicted)
- solubility
- widely sol organic solvents
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BIS(DIMETHYLVINYLENE) PYROPHOSPHATE Usage And Synthesis
Description
BIS(DIMETHYLVINYLENE) PYROPHOSPHATE is a phosphorylating agent; selective for primary alcohols over secondary alcohols, especially in the presence of triethylamine; used for the preparation of various unsymmetrical phosphodiesters; precursor of the more reactive phosphorylating agents 4,5-dimethyl-2-chloro-2-oxo-1,3,2-dioxaphosphole and 4,5-dimethyl-2-(1′-imidazolyl)-2- oxo-1,3,2-dioxaphosphole.
Preparation
BIS(DIMETHYLVINYLENE) PYROPHOSPHATE can be prepared from 4,5-dimethyl-2-methoxy-2-oxo-1,3,2-dioxaphosphole (1) by treatment with pyridine in benzene to form the salt (2), followed by reaction with phosgene in benzene (eq 1). The solid (3) is recrystallized from CH2Cl2/hexanes.