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Acros Organics & Maybridge - D

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Di-tert-butyl(cyclohexyl)phosphine, 98%<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

390240010 Glass bottle 1 g INR 5,800<br />

390240050 Glass bottle 5 g INR 18,070<br />

R17 R36/37/38<br />

S26 S37/39<br />

Air sensitive<br />

C14H29P CAS: 436865-11-1<br />

MFCD03426985<br />

FW: 228.36<br />

Fp: 68 °C<br />

2,6-Di-tert-butyl--(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-p-tolyloxy free radical<br />

, see Galvinoxyl free radical on page 1103<br />

Di-tert-butyl dicarbonate<br />

APPLICATION GUIDE<br />

Protecting Group Chemistry<br />

* Protection of alcohols Not used for protection of alcohols but used for the protection of phenols-<br />

Phase transfer (BOC2O, Bu4NHSO4 , NaOH, DCM) or BOC2O, DMAP. Cleavage with 3M HCl in dioxane.<br />

* Protection of amides The rate of reaction with BOC2O increases as the acidity of the amide NH<br />

increases. DMAP catalyst is used. JOC 1997, 62, 2070<br />

* Protection of amines Used extensively for amine protection. Not hydrolysed under basic conditions<br />

and is inert to many nucleophilic reagents. A common method for its introduction is (BOC) 2O, NaOH,<br />

water, r.t. Non aqueous conditions: (BOC) 2O, TEA, DCM are also used. Acidic cleavage e.g. HCl in<br />

MeOH, TFA, TsOH. Imidazoles are also protected under phase transfer conditions or via NaH<br />

deprotonation. TL 1988, 29, 3411<br />

* Protection of thiols Protects thiols, both amine and thiol of cysteine is simultaneously protected.<br />

Treatment with HCl in EtOAc selectively removes the S-Boc group. JOC 1994, 59, 3216<br />

Di-tert-butyl dicarbonate, 99%<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

194670100 Glass bottle 10 g INR 860<br />

194670250 Glass bottle 25 g INR 1,440<br />

194670500 Glass bottle 50 g INR 2,260<br />

194671000 Glass bottle 100 g INR 3,930<br />

194675000 Glass bottle 500 g INR 15,520<br />

R11 R26 R36/37/38<br />

R43<br />

S7 S26 S28A S33<br />

S36/37/39 S45<br />

Moisture sensitive<br />

Store below +4ºC<br />

C10H18O5 CAS: 24424-99-5<br />

MFCD00008805<br />

FW: 218.25<br />

Di-tert-butyl dicarbonate, 97%<br />

O[CO2C(CH3 ) 3 ] 2<br />

mp: 22-24 °C<br />

bp: 56-57 °C (0.5 mm-<br />

Hg)<br />

Fp: 37 °C<br />

d: 1.020<br />

n 20<br />

D : 1.4075 -1.4095<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

189770050 Glass bottle 5 g INR 590<br />

189771000 Glass bottle 100 g INR 3,930<br />

189775000 Glass bottle 500 g INR 15,520<br />

R11 R26 R36/37/38<br />

R43<br />

S7 S26 S28A S33<br />

S36/37/39 S45<br />

Moisture sensitive<br />

Store below +4ºC<br />

C10H18O5 CAS: 24424-99-5<br />

MFCD00008805<br />

FW: 218.25<br />

O[CO2C(CH3 ) 3 ] 2<br />

mp: 22-24 °C<br />

bp: 56-57 °C (0.5 mm-<br />

Hg)<br />

Fp: 37 °C<br />

Di-tert-butyl dicarbonate, 1M solution in THF<br />

APPLICATION GUIDE<br />

P<br />

d: 1.020<br />

n 20<br />

D : 1.4075 -1.4095<br />

http://www.acros.com Dibutylcyclo<br />

Di-tert-butyl dicarbonate<br />

1M solution in THF, AcroSeal®<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

426801000 AcroSeal 100 ml INR 3,310<br />

426808000 AcroSeal 800 ml INR 15,390<br />

R11 R19 R26 R36/<br />

37/38 R43<br />

S16 S26 S28A S29<br />

S33 S36/37/39 S45<br />

C10H18O5 CAS: 24424-99-5<br />

MFCD00008805<br />

Dibutyldichlorotin , see Dibutyltin dichloride on page 722<br />

O[CO 2 C(CH 3 ) 3 ] 2<br />

FW: 218.25<br />

d: 0.913<br />

Di-tert-butyl N,N-diisopropylphosphoramidite, 95%<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

426890010 Glass bottle 1 g INR 1,360<br />

426890050 Glass bottle 5 g INR 5,360<br />

R22 R36/37/38<br />

S26 S37/39<br />

Moisture sensitive<br />

Air sensitive<br />

Store below +4ºC<br />

C14H32NO2P CAS: 137348-86-8<br />

MFCD00153506<br />

FW: 277.39<br />

bp: 85-90 °C (0.2 mm-<br />

Hg)<br />

Fp: 113 °C<br />

d: 0.879<br />

Dibutyl ditelluride, 90%<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

301850010 Glass bottle 1 g INR 7,030<br />

R20/21/22<br />

S36/37<br />

Store below +4ºC<br />

C8H18Te2 CAS: 77129-69-2<br />

MFCD02093883<br />

[CH3 (CH2 ) 3 ] 2Te2 FW: 369.43<br />

bp: 93 °C (0.5 mmHg)<br />

Di-n-butyl ether, 99+% Extra Dry<br />

AcroSeal®<br />

<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />

396911000 AcroSeal 100 ml INR 2,190<br />

396910010 AcroSeal 1 l INR 3,510<br />

R10 R36/37/38 R52/<br />

53<br />

S61<br />

Light sensitive<br />

Air sensitive<br />

C 8 H 18 O [CH 3 (CH 2 ) 3 ] 2 O<br />

CAS: 142-96-1<br />

MFCD00009461<br />

FW: 130.23<br />

mp: -95 °C<br />

bp: 141 °C<br />

Fp: 25 °C<br />

Water ............................. 0.005 % (Coulometry)<br />

Evapn. residue................ 0.0005 %<br />

Assay ............................. 99.0 %<br />

d: 0.768<br />

n 20<br />

D : 1.3978 -1.3998<br />

Please enquire for bulk quantities 717<br />

O<br />

N<br />

P<br />

O<br />

D

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