Keyword Analysis & Research: pme chemical


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What is PME (pectin methylesterase)?

Pectin methylesterase (PME) is the first enzyme acting on pectin, a major component of plant cell wall. PME action produces pectin with different structural and functional properties, having an important role in plant physiology.

Is PMe3 safe to use?

PMe 3 is toxic and pyrophoric. It converts to a much safer phosphine oxide upon treatment with sodium hypochlorite or hydrogen peroxide. ^ a b "Trimethylphosphine (CHEBI:35890)".

What happens when PMe3 reacts with acid?

With a pK a of 8.65, PMe 3 reacts with strong acids to give salts [HPMe 3 ]X. This reaction is reversible. With strong bases, such as alkyl lithium compounds, a methyl group undergoes deprotonation to give PMe 2 CH 2 Li.

Is the reaction between PMe3 and methyl bromide reversible?

This reaction is reversible. With strong bases, such as alkyl lithium compounds, a methyl group undergoes deprotonation to give PMe 2 CH 2 Li. PMe 3 is easily oxidised to the phosphine oxide with oxygen. It reacts with methyl bromide to give tetramethylphosphonium bromide.

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