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allyl pattern in nmr

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myabaumbach:
How does allyl protons appear in HNMR
I have doublet at 4 ppm, two doublets at 5-5.5 ppm and multiplet at 6 ppm
how can this be explained

phth:
What are the J coupling values? Are there multiple J coupling values per each proton?

wildfyr:
Yep, that is HIGHLY characteristic of allyl.

You can look up some allyl compounds on the public site SDBS for examples.

https://sdbs.db.aist.go.jp/sdbs/cgi-bin/cre_index.cgi

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