A reaction of stabilized arsonium ylide of dicarboxylate ester with tropylium fluoroborate: An efficient strategy for ring contraction of cycloheptatriene
The coupling of vinylic ylide (3) synthesized from AsPh3 (2) and dimethyl acetylenedicarboxylate (DMAD) (1) with tropylium fluoroborate (4) in CH2Cl2 was found to give 3-phenyl-1,2-dicarbomethoxyprop-2-enylidentriphenyl arsonium salt (5) via ring contraction of cycloheptatriene. Treatment of the lat...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-03-01
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| Series: | Journal of King Saud University: Science |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018364719318348 |