Alyl or Allyl: How To spell?
The word Alyl is misspelled against Allyl, a noun meaning "An organic radical, C3H5, existing especially in oils of garlic and mustard."
Allyl has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings a & yl which should not be misspelled with single 'L'
Wrong Spelling:  a-l-yl  Correct Spelling:  a-ll-yl 
Navigate all incorrect spellings of Allyl to spell it right.