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Protecting reagents are utilized to attach protecting groups to reactive functional groups in building blocks and intermediates to prevent unwanted side reactions, which are widely applied in organic reactions for producing peptides, sugars, nucleotides, terpenes, alkaloids and a large number of other chemicals.
J&K provides a wide range of protecting agents not only with conventional protecting groups (e.g. TMS, Boc, trityl), but also the novel ones like 1,2-bis(chlorodimethylsilyl)ethane (Cat. No.170393), which reacts only with aliphatic primary amines to generate azadisilacyclopentane derivatives.
 
Cat. No.
Description
Structure
Allyl bromide, 98%
Allyl chloroformate, 98%
p-Anisaldehyde, 99%
Benzyl bromide, 97%
Benzyl carbazate, 98%
Benzyl chloride, 99%
Benzyl chloroformate, 97%, J&KSeal
N-(Benzyloxycarbonyloxy)succinimide, 99%
Bromidetriphenylmethane, 98%
2-Bromoacetophenone, 99%
2-tert-Butoxycarbonyloxyimino-2-phenylacetonitrile ,99%
tert-Butyl carbazate, 99%
tert-Butyldimethylchlorosilane, 99%
tert-Butyldimethylsilyl trifluoromethanesulfonate, 98%
2-Chloroethyl ethyl ether, 98%
Chloromethyl ethyl ether, 80%
Chlorotriethylsilane, 99%
Chlorotrimethylsilane, 99%
1,3-Dichloro-1,1,3,3-tetraisopropyldisiloxane, 97%
Diethyl carbonate, anhydrous, 99%
3,4-Dihydro-2H-pyran, 98%
2,4-Dimethoxybenzaldehyde, 98%
2,2-Dimethoxypropane, 98%
4,4'-Dimethoxytrityl chloride, 98%
Ethanesulfonyl chloride, 98%
N-(9-Fluorenylmethoxycarbonyloxy)succinimide, 98%
9-Fluorenylmethyl carbamate, 98%
9-Fluorenylmethyl chloroformate, 98%
4-Methoxybenzenesulfonyl chloride, 99%
4-Methoxybenzylchloride, 98%
2-Methoxyethoxymethyl chloride, 94%
4-Methoxytrityl chloride, 98%
4-Nitrobenzyl bromide, 99%
4-Nitrophenyl chloroformate, 98%
1,3-Propanedithiol, 98%
Propylene glycol, 99.8%
p-Toluenesulfonyl chloride, 99%
Triisopropylchlorosilane, 97%
2,4,6-Trimethylbenzenesulfonyl chloride, 99%
Trimethyl orthoformate, 99%
(Trimethylsilyl)diazomethane, 2.0 M solution in hexane
Trimethylsilyl trifluoromethanesulfonate, 99%
Trityl chloride, 99%
J&K 2015-2016 Catalog
 
The J&K Catalog offers more than 15,000 products in four primary product categories:
 
 
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