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 Vol. 2, No. 8
New Nitrogen-Containing Heterocycles
Introduction / 5-Membered Heterocyclic Rings / 6-Membered Heterocyclic Rings
Mitsunaobu Reagents / Polymer-Supported Reagents / JandaJels™ / Functionalized Silica Gels
Polymer-Supported Reagents
The large, and tightly controlled particle size of Stratospheres™ makes them easy to handle, dispense, and filter. The high loading level ensures that polar solvents such as DMF and methanol can be used to good effect even though these products are manufactured from microporous polystyrene.
54,755-7
STRATOSPHERES™ PL-PIP (PIPERIDINE) RESIN, 50-100 MESH, 1% CROSS-LINKED
 Supported tertiary amine.
5g; 25g
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55,481-2
STRATOSPHERES™ PL-TBD(1,3,5-TRIAZABICYCLO[4.4.0]DEC-5-ENE) RESIN, 50-100 MESH, 1% CROSS-LINKED
 Scavenger for phenols and peroxides.
5g; 25g
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54,754-9
STRATOSPHERES™ PL-PPZ(PIPERIZINE) RESIN, 50-100 MESH, 1% CROSS-LINKED
 Serves as a Knoevenagel catalyst; eliminates piperidine-derived byproducts and reduces transesterification when using alcohol as a solvent.
5g; 25g
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 56,487-7
SUCCINIMIDYL CARBONATE, POLYMER-BOUND,100-200 MESH, 1% DVB
5g; 25g
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56,412-5
 PIPERIDINE, POLYMER-BOUND, 100-200 MESH, MACROPOROUS [(PIPERDINOMETHYL)POLYSTYRENE]
Acid scavenger.
5g; 25g
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 55,519-3
SCAVENGEPORE&#reg; PHENETHYL PIPERIDINE, 40-70 MESH
Acid scavenger
5g; 25g
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 56,188-6
PIPERIDINE-4-CARBOXYLIC ACID ON TRIS (2-AMINOETHYL)AMINE RESIN, 1% DVB, 100-200 MESH [TRIS(ISONIPECOTYLAMINOETHYL)AMINE]
Acid scavenger
5g; 25g
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 54,936-3
IMIDAZOLE CARBONATE, POLYMER-BOUND TO WANG RESIN, 100-200 MESH, 1% CROSS-LINKED
This resin reacts rapidly with amines and Grignard reagents to provide the corresponding urethanes and esters. Efficient cleavage can be performed using TFA or hydrogenolysis.
1g; 5g
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 56,609-8
TEMPO, POLYMER-BOUND, 100-200 MESH [PS-TEMPO, (2,2,6,6-TETRAMETHYL-1-PIPERINYLOXY, FREE RADICAL), POLYMER-BOUND]
Starting material for Rasta Resin as well as a resin for solution-phase synthesis. A supported oxidizing reagent for the conversion of primary alcohols to aldehydes and secondary alcohols to ketones. The free radical is formed at 136:C.
1g; 5g
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