Allyltriphenylphosphonium bromide

CAS 1560-54-9 C₂₁H₂₀BrP 383.3 g/mol Catalogue item Boronic Acids & Coupling Reagents

Structure of Allyltriphenylphosphonium bromide, CAS 1560-54-9 — Structure · C21H20BrP

CAS number: 1560-54-9
Molecular formula: C₂₁H₂₀BrP
Molecular weight: 383.3 g/mol
Standard packing: 1kg / 25kg / 100kg

CAS 1560-54-9, Allyltriphenylphosphonium bromide, is a phosphonium salt – the ylide precursor for Wittig chemistry (C21H20BrP).

Phosphonium salts are charged as dried solids, because water consumes the ylide as fast as it forms.

The formula C21H20BrP resolves to 21 carbons with one phosphorus and one bromine. With 21 carbons the lipophilicity dominates: solubility in polar media falls away and the work-up is usually a phase separation.

Handling and storage

Keep sealed and dry. A wet salt consumes base before it consumes the aldehyde, which shows up as a low conversion.

Ordering

Packing 1kg / 25kg / 100kg, with the batch COA, the SDS and a specification sheet suitable for incoming inspection travelling with the lot.

Other boronic acids & coupling reagents entries

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CAS	Compound	Formula	MW	Packing	Quote
72931-54-5	(3,3-Diisopropoxypropyl)triphenylphosphonium bromide	C₂₇H₃₄BrO₂P	501.4	1kg / 25kg / 100kg	Request
223576-64-5	(5-Chlorobenzofuran-2-yl)boronic acid	C₈H₆BClO₃	196.40	1kg / 25kg / 100kg	Request
6229-00-1	(Triphenylsilyl)acetylene	C₂₀H₁₆Si	284.4	1kg / 25kg / 100kg	Request
21692-54-6	1-[2-(Triethylsilyl)ethynyl]cyclohexene	C₁₄H₂₄Si	220.42	1kg / 25kg / 100kg	Request
5272-36-6	3-(Trimethylsilyl)propargyl alcohol	C₆H₁₂OSi	128.24	1kg / 25kg / 100kg	Request
886593-45-9	4-(2-hydroxypropan-2-yl)phenylboronic acid	C₉H₁₃BO₃	180.01	1kg / 25kg / 100kg	Request
5930-98-3	4-(Trimethylsilyl)-3-butyn-2-one	C₇H₁₂OSi	140.25	1kg / 25kg / 100kg	Request
1679-18-1	4-Chlorophenylboronic acid	C₆H₆BClO₂	156.38	1kg / 25kg / 100kg	Request

Specification

CAS	1560-54-9
Formula	C₂₁H₂₀BrP
Molecular weight	383.3 g/mol
Packing	1kg / 25kg / 100kg
Assay	lot specific, on COA
Appearance	see COA
Storage	cool, dry, inert

Ordering

Catalogue items ship from stock or are made to order, whichever the lot status requires. A gram-scale sample is available before a kilo lot is committed.

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Supplied for laboratory and industrial use. Not for drug, cosmetic or household use.

Quotation

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Entry	Allyltriphenylphosphonium bromide
CAS	1560-54-9
Typical lead time	Stock or 2–4 weeks
Documentation	COA, SDS, spec sheet

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