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Wittig Reagents

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PRODUCT NAMECATALOG #DESCRIPTIONCITATIONSRANKING
(1,3-Dioxolan-2-ylmethyl)triphenylphosphonium bromidesc-222985A phosphonium ylide for Wittig olefination with introduction of a 1,3-dioxolane moeity. CAS # 52509-14-5

2-(1,3-Dioxolan-2-yl)ethyltriphenylphosphonium bromidesc-237850 CAS # 86608-70-0

2-(1,3-Dioxan-2-yl)ethyltriphenylphosphonium bromidesc-237849 CAS # 69891-92-5

2-(Trimethylsilyl)ethoxymethyl-triphenylphosphonium chloridesc-237889 CAS # 82495-75-8

2-(Triphenylphosphoranylidene)butyraldehydesc-223308 CAS # 90601-08-4

2-(Triphenylphosphoranylidene)propionaldehydesc-223309 CAS # 24720-64-7

2-(Triphenylphosphoranylidene)succinic anhydridesc-223310 CAS # 906-65-0

(2-Aminobenzyl)triphenylphosphonium bromidesc-229937 CAS # 78133-84-3

(2-Chlorobenzyl)triphenylphosphonium Chloridesc-288071 CAS # 18583-55-6

(2-Dimethylaminoethyl)triphenylphosphonium bromidesc-280272 CAS # 21331-80-6

(2-Hydroxybenzyl)triphenylphosphonium bromidesc-288152 CAS # 70340-04-4

(2-Hydroxyethyl)triphenylphosphonium bromidesc-230407 CAS # 7237-34-5

(2-Hydroxyethyl)triphenylphosphonium chloridesc-230408 CAS # 23250-03-5

2-Oxopropyltriphenylphosphonium chloridesc-225524 CAS # 1235-21-8

(2-Trimethylsilylethyl)triphenylphosphonium Iodidesc-288323 CAS # 63922-84-9

(2,4-Dichlorobenzyl)triphenylphosphonium Chloridesc-288417 CAS # 2492-23-1

(2,6-Naphthalenedimethylene)bis(triphenylphosphonium bromide) hydratesc-288511

(3-(Dimethylamino)propyl)triphenylphosphonium bromidesc-256419 CAS # 18355-96-9

[3-(Ethoxycarbonyl)-2-oxopropyl]triphenylphosphonium chloridesc-225889 CAS # 106302-03-8

[3-(Ethoxycarbonyl)propyl]triphenylphosphonium bromidesc-231373 CAS # 50479-11-3

(3-Benzyloxypropyl)triphenylphosphonium bromidesc-231487 CAS # 54314-85-1

(3-Bromobutyl)triphenylphosphonium bromidesc-225981 CAS # 132256-97-4

(3-Bromopropyl)triphenylphosphonium bromidesc-231561 CAS # 3607-17-8

(3-Carboxypropyl)triphenylphosphonium bromidesc-225995 CAS # 17857-14-6

(3,3,3-Trichloropropyl)triphenylphosphonium chloridesc-289285

(3-Trimethylsilyl-2-propynyl)triphenylphosphonium bromidesc-231933 CAS # 42134-49-6

(4-Bromobutyl)triphenylphosphonium bromidesc-232506 CAS # 7333-63-3

(4-Carboxybutyl)triphenylphosphonium bromidesc-226561 CAS # 17814-85-6

(4-Chlorobenzyl)triphenylphosphonium chloridesc-226590 CAS # 1530-39-8

(4-Ethoxybenzyl)triphenylphosphonium bromidesc-232646 CAS # 82105-88-2

(4-Nitrobenzyl)triphenylphosphonium bromidesc-232921 CAS # 2767-70-6

4,4'-Bis(diethylphosphonomethyl)biphenylsc-290510 CAS # 17919-34-5

(Allyloxycarbonylmethyl)triphenylphosphonium iodidesc-239209Used in the preparation of α,β-unsaturated esters from aldehydes and ketones. The allyl group can be removed by standard rhodium or palladium chemistry. CAS # 206557-04-2

Allyltriphenylphosphonium bromidesc-227238 CAS # 1560-54-9

Benzyl(triphenylphosphoranylidene)acetatesc-227339 CAS # 15097-38-8

(Benzyloxycarbonylmethyl)triphenylphosphonium bromidesc-234003 CAS # 78385-36-1

Benzyltriphenylphosphonium bromidesc-239334 CAS # 1449-46-3

Benzyltriphenylphosphonium bromide, polymer-boundsc-254969Polymer-supported Wittig reagent for clean olefinations of carbonyl compounds. CAS # 29518-68-1

Benzyltriphenylphosphonium chloridesc-239335 CAS # 1100-88-5

(Bromomethyl)triphenylphosphonium bromidesc-234218 CAS # 1034-49-7

Butyltriphenylphosphonium bromidesc-234253 CAS # 1779-51-7

Butyltriphenylphosphonium chloridesc-227556 CAS # 13371-17-0

(Carbethoxymethyl-1,2-13C2)triphenylphosphonium bromidesc-227574 CAS # 109376-35-4

(Chloromethyl)triphenylphosphonium chloridesc-252593A phosphonium ylide reagent for Wittig olefinations to produce a vinyl chloride. CAS # 5293-84-5

(Cyanomethyl)triphenylphosphonium chloridesc-234432 CAS # 4336-70-3

Cyclopropyltriphenylphosphonium bromidesc-239634A Wittig reagent. CAS # 14114-05-7

Diethyl (3-Chlorobenzyl)phosphonatesc-294313 CAS # 78055-64-8

Diethyl (4-Bromobenzyl)phosphonatesc-294314 CAS # 38186-51-5

Diethyl (4-Iodobenzyl)phosphonatesc-294316 CAS # 173443-43-1

Diethyl (Methoxymethyl)phosphonatesc-294317 CAS # 32806-04-5

Diethyl 1-Pyrrolidinemethylphosphonatesc-294319 CAS # 51868-96-3

Diethyl 2,2-Diethoxethylphosphonatesc-218203A useful wittig reagent. CAS # 7598-61-0

Diphenyl (N-Methoxy-N-methylcarbamoylmethyl)phosphonatesc-294364 CAS # 367508-01-8

Diphenyl 4-Bromo-alpha-chlorobenzylphosphonatesc-294365 CAS # 189099-56-7

Dodecyltriphenylphosphonium bromidesc-227967 CAS # 15510-55-1

(e,e)-2,4-Heptadienyldiphenylphosphine Oxidesc-211390 CAS # 91575-92-7

(Ethoxycarbonylmethyl)triphenylphosphonium bromidesc-255138 CAS # 1530-45-6

(Ethoxycarbonylmethyl)triphenylphosphonium chloridesc-239874Beginning material for preparing the Wittig-reagent. CAS # 17577-28-5

Ethyl (triphenylphosphoranylidene)pyruvatesc-228013 CAS # 13321-61-4

Ethyl 2-(Diethoxyphosporyl)-2-hydroxyacetatesc-218354A useful wittig reagent. CAS # 162246-79-9

Ethyl 2-Acetoxy-2-(diethoxyphosphoryl)acetatesc-207650A wittig reagent. CAS # 162246-77-7

Ethyl 4,4,4-trifluoro-2-(triphenylphosphoranylidene)acetoacetatesc-235011 CAS # 83961-56-2

Ethyl Di-o-tolylphosphonoacetate [Horner-Emmons Reagent]sc-294548 CAS # 188945-41-7

Ethyltriphenylphosphonium bromidesc-235099 CAS # 1530-32-1

Ethyltriphenylphosphonium iodidesc-239973 CAS # 4736-60-1

(Formylmethyl)triphenylphosphonium chloridesc-235216 CAS # 62942-43-2

Heptyltriphenylphosphonium bromidesc-228278 CAS # 13423-48-8

Isoamyltriphenylphosphonium bromidesc-235390 CAS # 28322-40-9

Isopropyltriphenylphosphonium iodidesc-252925Employed in Wittig and cyclopropanation reactions. CAS # 24470-78-8

(Methoxycarbonylmethyl)triphenylphosphonium bromidesc-228467 CAS # 1779-58-4

(Methoxymethyl)triphenylphosphonium chloridesc-250323 CAS # 4009-98-7

Methyl(triphenylphosphoranylidene)acetatesc-211894 CAS # 2605-67-6

Methyltriphenylphosphonium bromidesc-253045Widely used for methylenation via the Wittig reaction: Wittig olefination salt used recently in a synthesis of an enyne which, via ring closing metathesis, provided a benzazepine ring system. CAS # 1779-49-3

Methyltriphenylphosphonium chloridesc-228599 CAS # 1031-15-8

Methyltriphenylphosphonium iodidesc-228600 CAS # 2065-66-9

N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamidesc-228722 CAS # 129986-67-0

N-Nitroso-N,N-dinonylaminesc-212255A stable product formed in the radiolysis of dinonylaniline in octane solutions containing nitrate. CAS # 84424-96-4

Nysted Reagentsc-253205Useful reagent in the methylenation of ketones and α-ketols. CAS # 41114-59-4

o-Xylylenebis(triphenylphosphonium bromide)sc-228864 CAS # 1519-46-6

p-Xylylenebis(triphenylphosphonium bromide)sc-355935 CAS # 40817-03-6

Phenacyltriphenylphosphonium bromidesc-236347 CAS # 6048-29-9

Propyltriphenylphosphonium bromidesc-250797 CAS # 6228-47-3

Stearyltributylphosphonium bromidesc-229331 CAS # 14866-42-3

(tert-Butoxycarbonylmethyl)triphenylphosphonium bromidesc-236972 CAS # 59159-39-6

(tert-Butoxycarbonylmethyl)triphenylphosphonium chloridesc-255632Reagent for Wittig-reactions and for the synthesis of α-diazophosphonium salts. CAS # 35000-37-4

Triethyl Phosphonoacetatesc-213109A reagent used for Horner-Emmons modification. CAS # 867-13-0

Triethyloxonium Tetrafluoroboratesc-208466A powerful ethylating agent. CAS # 368-39-8

1
Triphenyl(2-pyridylmethyl)phosphonium chloride hydrochloridesc-229610 CAS # 99662-46-1

Triphenylphosphonium cyclopentadienidesc-237365 CAS # 29473-30-1

(Triphenylphosphoranylidene)acetaldehydesc-213121 CAS # 2136-75-6

(Triphenylphosphoranylidene)acetonitrilesc-251386Wittig reagent for preparing α,β, unsaturated nitriles from carbonyl compounds. CAS # 16640-68-9

Triphenylpropargylphosphonium bromidesc-253781Wittig reagent. CAS # 2091-46-5

Triphenyltridecylphosphonium Bromidesc-213122A Wittig reagent. CAS # 13266-02-9

Triphenylvinylphosphonium bromidesc-253783Reagent for the synthesis of heterocycles. CAS # 5044-52-0