William S. Johnson
= William S. Johnson
{c}
<William S. Johnson> developed a stereoselective orthoester variant of the <Claisen rearrangement>. The 1970 report connects the method with formation of trans-trisubstituted carbon–carbon <double bonds> and the synthesis of <squalene>.<Simple stereoselective version of the Claisen rearrangement by William S. Johnson and colleagues>[1970, full title and original orthoester Claisen method]{ref}