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(-)-DIOP

(-)-DIOP Structure
(-)-DIOP structure
CAS No.
32305-98-9
Chemical Name:
(-)-DIOP
Synonyms
(R)-DIOP;(-)-DIOP;(-)-Diop;(R,R)-DIOP;(4R,5R)-DIOP;phosphino)butane;(-)-2,3-O-IsopropyL;(2r,3r)-(-)-1,4-Bis(Diphenyl;idene-2,3-dihydroxy-1,4-bis(diphenyL;(4R,5R)-(-)-4,5-BIS(DIPHENYLPHOSPHINOMET
CBNumber:
CB3371576
Molecular Formula:
C31H32O2P2
Molecular Weight:
498.54
MDL Number:
MFCD00014107
MOL File:
32305-98-9.mol
MSDS File:
SDS
Last updated:2023-05-11 17:26:00
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(-)-DIOP Properties

Melting point 88-90 °C(lit.)
alpha -26° (c 2.0, CHCl3)
Boiling point 590.3±25.0 °C(Predicted)
storage temp. 2-8°C
form Powder
color white
optical activity [α]19/D 26°, c = 2.3 in chloroform
Sensitive Air Sensitive
BRN 1441045
FDA UNII ESK57W53CI

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36/37
WGK Germany  3
F  10-23
TSCA  No
HS Code  29329990
NFPA 704
0
2 1

(-)-DIOP price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 237655 (?)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane 98% 32305-98-9 1g $360 2024-03-01 Buy
TCI Chemical B1113 (2R,3R)-(-)-1,4-Bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol >97.0%(T) 32305-98-9 1g $132 2021-12-16 Buy
Alfa Aesar B21029 (-)-DIOP, 98% 32305-98-9 1g $103 2021-12-16 Buy
Alfa Aesar B21029 (-)-DIOP, 98% 32305-98-9 250mg $39.4 2021-12-16 Buy
Strem Chemicals 15-2970 (4R,5R)-(-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane, 99.5% (R,R)-DIOP 32305-98-9 250mg $57 2024-03-01 Buy
Product number Packaging Price Buy
237655 1g $360 Buy
B1113 1g $132 Buy
B21029 1g $103 Buy
B21029 250mg $39.4 Buy
15-2970 250mg $57 Buy

(-)-DIOP Chemical Properties,Uses,Production

Chemical Properties

white powder

Uses

For the in situ preparation of chiral hydrogenation catalysts.

General Description

(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane is a C2 chelating diphosphine ligand for transition metal complexes during asymmetric catalysis.

Purification Methods

It has been recrystallised from *C6H6/pet ether. After 2 recrystallisations from EtOH, it was pure by TLC on silica gel using Me2CO/hexane as solvent. [Kagan & Dang J Am Chem Soc 94 6429 1972.] Lanthanide shift reagents See in “Aliphatic Compounds”, Chapter 4, europium (III) acetate above and Eu(tmc)3 and Eu(tfc)3 below.

(-)-DIOP synthesis

4376-01-6
37002-45-2
32305-98-9
Synthesis of (-)-DIOP from Sodium diphenyl phosphate and (-)-1,4-DI-O-TOSYL-2,3-O-ISOPROPYLIDENETHREITOL

(-)-DIOP Preparation Products And Raw materials

Raw materials

p-Toluenesulfonic acid D-Tartaric acid Triethyl orthoformate Sodium Methanesulfonyl chloride
Tetrahydrofuran (2S,3S)(-)-Dihydroxybutane-1,4-dioic acid diethyl ester Ethyl acetate Lithium Aluminum Hydride Dichloromethane
Triphenylphosphine PETROLEUM ETHER Lithium

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Preparation Products

(-)-DIOP Suppliers

Global( 138)Suppliers
Supplier Tel Email Country ProdList Advantage
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29914 58
Shenzhen Nexconn Pharmatechs Ltd 		+86-755-89396905 +86-15013857715 admin@nexconn.com China 7836 58
Hebei Guanlang Biotechnology Co., Ltd. 		+86-19930503282 alice@crovellbio.com China 8822 58
Chongqing Chemdad Co., Ltd 		+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58
Zhengzhou Alfa Chemical Co.,Ltd 		+8618530059196 sale04@alfachem.cn China 12439 58
GL Biochem (Shanghai) Ltd. 		+86-021-61263370 +86-18901917034 CHINA 3904 58
BOC Sciences 		+16314854226 inquiry@bocsci.com United States 19743 58
Zhuoer Chemical Co., Ltd 		02120970332; +8613524231522 sales@zhuoerchem.com China 3015 58
changzhou huayang technology co., ltd 		+8615250961469 2571773637@qq.com China 9821 58
Shaoxin Catsyn Co., Ltd. 		+undefined-0575-82040869 +86-0575-82040869; sales@catsyn.com China 6116 58
Supplier Advantage
career henan chemical co 		58
Shenzhen Nexconn Pharmatechs Ltd 		58
Hebei Guanlang Biotechnology Co., Ltd. 		58
Chongqing Chemdad Co., Ltd 		58
Zhengzhou Alfa Chemical Co.,Ltd 		58
GL Biochem (Shanghai) Ltd. 		58
BOC Sciences 		58
Zhuoer Chemical Co., Ltd 		58
changzhou huayang technology co., ltd 		58
Shaoxin Catsyn Co., Ltd. 		58

View Lastest Price from (-)-DIOP manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(-)-DIOP pictures 2023-04-08 (-)-DIOP
32305-98-9
 US $0.00-0.00 / KG 1KG 99% 20 mt Hebei Guanlang Biotechnology Co., Ltd.
(-)-DIOP (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane pictures 2020-06-02 (-)-DIOP (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane
32305-98-9
 US $6.00 / kg 1kg High quality Professional Factory Ms Ella chemwill_asia@126.com www.chemwill.com Chemwill Asia Co.,Ltd.
(-)-DIOP pictures 2019-08-09 (-)-DIOP
32305-98-9
 US $1.00 / KG 1KG 98% 1kg,5kg,100kg Career Henan Chemical Co
  • (-)-DIOP pictures
  • (-)-DIOP
    32305-98-9
  • US $0.00-0.00 / KG
  • 99%
  • Hebei Guanlang Biotechnology Co., Ltd.
  • (-)-DIOP pictures
  • (-)-DIOP
    32305-98-9
  • US $1.00 / KG
  • 98%
  • Career Henan Chemical Co

(-)-DIOP Spectrum

(-)-DIOP(32305-98-9)MS(-)-DIOP(32305-98-9)1HNMR(-)-DIOP(32305-98-9)31PNMR(-)-DIOP(32305-98-9)IR1(-)-DIOP(32305-98-9)IR2(-)-DIOP(32305-98-9)Raman

32305-98-9((-)-DIOP)Related Search:

Isopropenylboronic acid pinacol ester (-)-Taddol ISOPROPENYLMAGNESIUM BROMIDE Flexol plasticizer diop (+)-DIOP,(S,S)-DIOP,(4S,5S)-(+)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane,99.5%(S,S)-DIOP
(-)-DIOP 1,4-Bis(diphenylphosphino)butane 1,3-Dioxolane 2,2,4-TRIMETHYL-1,3-DIOXOLANE 2,2-Diethoxypropane
Diphenylphosphine (2R,3R)-(+)-BIS(DIPHENYLPHOSPHINO)BUTANE 2,2-DIMETHYL-1,3-DIOXOLANE 2-METHYL-1,3-DIOXOLANE 2,4-DIMETHYL, 1,3-DIOXALONE
BUTYLDIPHENYLPHOSPHINE 1,4-BIS(DIMETHYLPHOSPHINO)BUTANE (+)-MOD-DIOP

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(2r,3r)-(-)-1,4-Bis(Diphenyl (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, 98% 1GR (4R,5R)-(-)-4,5-Bis(diphenylphosphinoMethyl)-2,2-diMethyl-1,3-dioxolane,99% (R,R)-DIOP (4R,5R)-(-)-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane (-)-DIOP (2R,3R)-(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane )-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(dipheny (4R,5R)-(-)-2,2-Dimethyl-4,5-bis((diphenylphosphino)methyl)-1,3-dioxolane (4R,5R)-(-)-4,5-Bis(diphenylphosphinoMethyl)-2,2-diMethyl-1,3-dioxolane,(R,R)-DIOP. (4R,5R)-(-)-4,5-BIS(DIPHENYLPHOSPHINOMET (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino) 1,1'-[[(4R,5R)-2,2-Dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene)]bis[1,1-diphenylphosphine],99%e.e. (4R,5R)-(-)-4,5-Bis(diphenylphosphinomethyl)-2,2- dimethyl-1,3-dioxolane for synthesis (4R,5R)-DIOP (4R,5R)-trans-4,5-Bis[(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxolane (R)-DIOP Isopropenyl-2,3-dihydroxy-1,4-Bis (diphenylphosphino) butane 1,1'-[[(4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene)]bis[1,1-diphenyl-Phosphine (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane 98% (-)(2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane) OR (-)DIOP (4R-TRANS)-[(2,2-DIMETHYL-1,3-DIOXOLANE-4,5-DIYL)BIS(METHYLENE)]BIS(DIPHENYLPHOSPHINE) (-)-DIOP (-)-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(DIPHENYLPHOSPHINO)BUTANE (R,R)-(-)-2,3-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(DIPHENYL-PHOSPHINO)BUTANE (R,R)-DIOP (4R,5R)-(-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane,99.5%(R,R)-DIOP Phosphine, (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-diylbis(methylene)bisdiphenyl- (-)-2,3-O-ISOPROPYLIDENE-2,3-*DIHYDROXY- 1,4-BIS(DIP (-)-1,4-Bis-(diphenylphosphino)-2,3-dihydroxy-2,3- (-)-DIOP, (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, (4R,5R)-4,5-Bis(diphenylphosphino-methyl)-2,2-dimethyl-1,3-dioxolane (R,R)-DIOP, (-)-1,4-Bis(diphenylphosphino)-1,4-dideoxy-2,3-O-isopropylidene-L-threitol, (4R,5R)-4,5-Bis(diphenylphosphino-methyl)-2,2-dimethyl-1,3-dioxolane, (4R-trans)-[(2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene)]bis(diphenylphosphine) (4R)-2,2-Dimethyl-4β,5α-bis(diphenylphosphinomethyl)-1,3-dioxolane [(4R,5R)-2,2-Dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene)bis(diphenylphosphine) [[(4R)-2,2-Dimethyl-1,3-dioxolane-4β,5α-diyl]bis(methylene)]bis(diphenylphosphine) 2,2-Dimethyl-4β,5α-bis(diphenylphosphinomethyl)-1,3-dioxolane (-)-1,4-BIS(DIPHENYLPHOSPHINO)-1,4-DIDEOXY-2,3-O-ISOPROPYLIDENE-L-THREITOL (-)-2,3-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(DIPHENYLPHOSPHINO)BUTANE (2R,3R)-(-)-2,3-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(DIPHENYLPHOSPHINO)BUTANE (2R,3R)-(-)-1,4-BIS(DIPHENYLPHOSPHINO)-2,3-O-ISOPROPYLIDENE-2,3-BUTANEDIOL (4R,5R)-(-)-BIS(DIPHENYLPHOSPHINOMETHYL)-2,2-DIMETHYL-1,3-DIOXOLANE (4R 5R)-(-)-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(DIPHENYLPHOSPHINO)BUTANE (4R,5R)-(-)-4,5-BIS(DIPHENYLPHOSPHINOMETHYL)-2,2-DIMETHYL-1,3-DIOXOLANE (4R,5R)-4,5-BIS(DIPHENYLPHOSPHINO-METHYL)-2,2-DIMETHYL-1,3-DIOXOLANE (-)-DIOP (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane (3-chloro-2-hydroxypropyl) dihydrogen phosphate (2R,3R)-(-)-1,4-Bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol[(-)-DIOP] (2R,3R)-(-)-1,4-Bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol > (4R,5R)-(-)-2,2-Dimethyl-4,5-bis((diphenylphosphino)methyl)-1,3-dioxolane, 97%, for synthesis (-)-2,3-O-IsopropyL idene-2,3-dihydroxy-1,4-bis(diphenyL phosphino)butane [(4R,5R)-5-(diphenylphosphanylmethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl-diphenylphosphane Phosphine, 1,1'-[[(4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene)]bis[1,1-diphenyl- (4R,5R)-(-)-2,2-Dimethyl-4,5-bis((diphenylphosphino)methyl)- (-)-Diop (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (-)-2,2-dimethyl-4,5-((diphenylphosphino)dimethyl)dioxolane (R,R)-DIOP/(4R,5R)-(-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane 32305-98-9