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the claim

Hydride shift and methyl shift can occur consecutively in a carbocation

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that hydride shift and methyl shift can occur consecutively in a carbocation?

Yes. Multiple studies on carbocation cascade rearrangements and terpene biosynthesis confirm that hydride shifts and alkyl/methyl shifts can occur consecutively within carbocation intermediates.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

The analysis

The claim states that hydride shift and methyl shift can occur consecutively in a carbocation. Papers [4] and [10] discuss complex carbocation rearrangement cascades involving multiple sequential shifts (such as successive alkyl and hydride shifts). These mechanisms demonstrate that consecutive shifts of different types are well-established in carbocation chemistry. Therefore, the balance verdict is SUPPORTED.

Evidence for · 2
Revision of the Peniroquesine Biosynthetic Pathway by Retro-Biosynthetic Theoretical Analysis: Ring Strain Controls the Unique Carbocation Rearrangement Cascade.
2023
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T, M., K, T., M, N., H, S., & M, U. (2023). Revision of the Peniroquesine Biosynthetic Pathway by Retro-Biosynthetic Theoretical Analysis: Ring Strain Controls the Unique Carbocation Rearrangement Cascade.. doi.org. https://doi.org/10.1021/jacsau.3c00039

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More for · 1
Biosynthetic formation of the 6/7/5-odyverdiene diterpenes via a 6/10-<i>trans</i>-eunicellanyl intermediate.
2026
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W, N., WY, K., Z, L., X, W., J, N., B, X., FG, C., PS, H., DJ, T., & JD, R. (2026). Biosynthetic formation of the 6/7/5-odyverdiene diterpenes via a 6/10-<i>trans</i>-eunicellanyl intermediate.. doi.org. https://doi.org/10.1021/acscatal.6c00111

Receipt History
first checked05 Aug 2026
judged → SUPPORTED · 8005 Aug 2026
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