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B9807

1,1,2,2-Tetraphenyl-1,2-ethanediol

Name: 1,1,2,2-Tetraphenyl-1,2-ethanediol
Brand: ALDRICH

99%

Synonym(s):

TPED, Benzopinacol

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About This Item

Linear Formula:

(C₆H₅)₂C(OH)C(C₆H₅)₂OH

CAS Number:

464-72-2

Molecular Weight:

366.45

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

24892159

EC Number:

207-356-8

Beilstein/REAXYS Number:

2061947

MDL number:

MFCD00004448

Assay:

99%

Form:

crystals

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Properties

Quality Level

200

assay

99%

form

crystals

mp

171-173 °C (lit.)

SMILES string

OC(c1ccccc1)(c2ccccc2)C(O)(c3ccccc3)c4ccccc4

InChI

1S/C26H22O2/c27-25(21-13-5-1-6-14-21,22-15-7-2-8-16-22)26(28,23-17-9-3-10-18-23)24-19-11-4-12-20-24/h1-20,27-28H

InChI key

MFEWNFVBWPABCX-UHFFFAOYSA-N

Description

Application

1,1,2,2-Tetraphenyl-1,2-ethanediol (TPED) is used as an active component of the initiation system in free radical polymerization.
It is used as a precursor to prepare 1-hydroxy-2-(p-tolylaminocarbonyloxy)-1,1,2,2-tetraphenylethane (HTTPE), a thermal iniferter for radical polymerization.
TPED can also be used as a protecting group for the boronic acids by converting them to stable boronic esters.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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1, 1, 2, 2-Tetraphenyl-1, 2-ethanediol: A new protecting group for the synthesis of cyclopropylboronic esters.

Pietruszka J and Witt A

Synlett, 2003(01), 0091-0094 (2003)

Synthesis of well?defined polystyrene by radical polymerization using 1, 1, 2, 2?tetraphenyl?1, 2?ethanediol/feCl3/PPh3 initiation system.

Chen X P and Qiu K Y

Journal of Applied Polymer Science, 77(7), 1607-1613 (2000)

Synthesis of well-defined poly (methyl methacrylate) by radical polymerization with a new initiation system TPED/FeCl3/PPh3.