Home > Organophosphorus Compounds> 4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide

4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide

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Origin: China

Cas No: 16352-18-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 16352-18-4 Formula: C6H13O3P Molecular Weight: 164.13900

Basic Info

Chemical Name	4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide
Synonyms	hydroxy-2 tetramethyl-4,4,5,5 dioxaphospholanne-1,3,2; Phosphonic acid pinacol ester; 4,4,5,5-Tetramethyl-1,3,2-dioxaphospholane 2-Oxide; Pinacol phosphonate; hydro-2 oxo-2 tetramethyl-4,4,5,5 dioxaphospholanne-1,3,2; HASPO-1; 1,3-dioxa-2-phospha-4,4,5,5-tetramethylcyclopentane;
CAS No.	16352-18-4
Molecular Formula	C6H13O3P
Molecular Weight	164.13900
PSA	59.00000
LogP	1.98010

Properties

Boiling Point	179.377ºC at 760 mmHg
Melting Point	99-106ºC
Flash Point	79.028ºC
Vapor Pressure	1.278mmHg at 25°C

Safety Info

Safety Statements	S26
HS Code	2934999090
Risk Statements	R21
Hazard Codes	Xn
Caution Statement	P280; P305 + P351 + P338
Hazard Declaration	H312; H319
Symbol	GHS07
Signal Word	Warning

Synthesis Route

2,3-dimethylbutane-2,3-diol→4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide
2-CHLORO-4,4,5,5-TETRAMETHYL-1,3,2-DIOXAPHOSPHOLANE→4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide
2,3-dimethylbutane-2,3-diol+4-chloro-3-[5-[(ethylcarbamothioylhydrazinylidene)methyl]furan-2-yl]benzoic acid→4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-ium 2-oxide

Precursor

2,3-dimethylbutane-2,3-diol
2-CHLORO-4,4,5,5-TETRAMETHYL-1,3,2-DIOXAPHOSPHOLANE
N,N,4,4,5,5-hexamethyl-1,3,2-dioxaphospholan-2-amine
4-chloro-3-[5-[(ethylcarbamothioylhydrazinylidene)methyl]furan-2-yl]benzoic acid

Downstream Product

4,4,5,5-tetramethyl-2-(2-phenylethyl)-1,3,2λ<sup>5</sup>-dioxaphospholane 2-oxide
2-ethenyl-4,4,5,5-tetramethyl-1,3,2λ<sup>5</sup>-dioxaphospholane 2-oxide

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