Morton Thiokol Inc.

Cvd, Incorporated

Jorg Lorberth

Benjamin C Hui

Andreas A Melas

Ravindra K Kanjolia

Method for synthesizing alkyl halides of phosphorus, arsenic, or antimony from the corresponding phosphorus, arsenic, or antimony alkyl and phosphorus, arsenic, or antimony halide. An improved synthesis of alkyl phosphorus or arsenic hydrides from the corresponding alkyl phosphorus, arsenic, or antimony halides is also disclosed.

Synthesis of phosphorus and arsenic, halides and hydrides

A method is provided for highly pure mono- and dialkylarsines, particularly removing substantially all silicon-containing impurities. A mono- or dialkylarsine is reacted with either an alkali metal or an alkali metal hydrocarbyl, thereby producing an alkali metal alkylarsenide. Silicon, germanium, zinc and other metallic impurities are removed from the alkali alkylarsenide. Mono- and dialkylarsine is then regenerated by reaction of the alkali metal alkylarsenide with a proton donor.

Chemical process for obtaining high purification of monoalkylarsines and

Organometallic compounds having the formulas: ##STR1## wherein N is selected from phosphorus and arsenic, H is hydride, and X and Y are independently selected from hydride, lower alkyl cyclopentadienyl, and phenyl, except that Y cannot be hydrogen; and

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Weimar-Niederweimar, Germany

Jorg Lorberth