2,6-Diaminotoluene synthesis
- Product Name:2,6-Diaminotoluene
- CAS Number:823-40-5
- Molecular formula:C7H10N2
- Molecular Weight:122.17
Human exposure to 2,6-TDA may occur indirectly via exposure to toluene diisocyanate mixture containing 2,6- toluenediisocyanate, which is known to hydrolyze to 2,6- TDA rapidly upon contact with water. Workers in some plastics and elastomers industries may be exposed to atmosphere containing TDI.
91-08-7
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823-40-5
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Yield:823-40-5 94%
Reaction Conditions:
with formic acid;trifluoroborane diethyl ether
Steps:
3 EXAMPLE 3
EXAMPLE 3 20 parts freshly distilled ether, 1.74 parts (0.01 mole) 2,6-toluenediisocyanate, 2.8 parts (0.02 mole) boron trifluoride etherate and 1.0 part (0.02 mole) 98% formic acid were added and reacted following the procedures of Example 1. The neutralizing and isolation procedures described in Example 2 were followed. 1.16 g (94% yield) 2,6-toluenediamine were recovered, having a melting point of 104° C. to 105° C.
References:
US5041670,1991,A
87-60-5
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823-40-5
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606-20-2
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121-14-2
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823-40-5
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