## Abstract During the reaction of allyl ethers, allyl sulfides and allyl selenides with __in situ__ prepared dichloroketene (**1**), 2 competing pathways are observed. Besides [2+2]βcycloaddition, an unprecedented [3,3]βsigmatropic (__Claisen__) rearrangement via a 1,3βdipolar intermediate takes p
A new fragmentation pathway of cis-1-decalone involving a double McLafferty rearrangement
β Scribed by J-F. Rontani; C. Aubert; G. Giusti
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 118 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1076-5174
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β¦ Synopsis
A new fragmentation pathway of cis-1-decalone involving a double McLafferty rearrangement .
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Cis-and trans-1-decalones can be easily differentiated by mass spectrometry (Figure 1) and different mechanisms could be proposed for most of their principal fragmentation processes' .
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