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  2. Organophosphorus chemistry - Wikipedia

    en.wikipedia.org/wiki/Organophosphorus_chemistry

    Those with five organic substituents are rare, although P(C 6 H 5) 5 is known, being derived from P(C 6 H 5) 4 + by reaction with phenyllithium. Phosphorus ylides are unsaturated phosphoranes, known as Wittig reagents, e.g. CH 2 P(C 6 H 5) 3. These compounds feature tetrahedral phosphorus(V) and are considered relatives of phosphine oxides.

  3. Organophosphate - Wikipedia

    en.wikipedia.org/wiki/Organophosphate

    In organic chemistry, organophosphates (also known as phosphate esters, or OPEs) are a class of organophosphorus compounds with the general structure O=P(OR) 3, a central phosphate molecule with alkyl or aromatic substituents. [1] They can be considered as esters of phosphoric acid. Organophosphates are best known for their use as pesticides.

  4. Organophosphate poisoning - Wikipedia

    en.wikipedia.org/wiki/Organophosphate_poisoning

    Because OP pesticides degrade quickly when exposed to air and light, they have been considered relatively safe to consumers. [20] However, OP residues may linger on fruits and vegetables. [21] Certain OP pesticides have been banned for use on some crops, For example, methyl parathion is banned from use on some crops and permitted on others. [22]

  5. Organothiophosphate - Wikipedia

    en.wikipedia.org/wiki/Organothiophosphate

    They are the organic compounds that contain a phosphate group in which one or more oxygen atoms is substituted by sulfur. Many are used as pesticides, some have medical applications, and some are used as oil additives. [1] They generally have the chemical formula (RO) 3 PS, [(RO) 2 P(S)O] −, R(RO) 2 PS, etc.

  6. 7 Organic Pesticides You Can Make at Home To Protect Your ...

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  7. DIY Organic Pesticides to Make at Home - AOL

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    Neem Oil Spray. Neem oil, derived from the neem tree, is a natural pesticide that targets a wide range of garden pests.When mixed with water and a few drops of liquid soap, it becomes an effective ...