BOOK REVIEWS series. One hundred and twelve pages of indices in fine print cover the five volumes. In this volume the Trends section points up new experimental methods. A random sampling are: formylation for the protection of amino groups since the formyl group may be removed lat.er by oxidation with hydrogen peroxide; the independent synthesis of griseafulvin by two groups; rearrangement of m-dioxanes to give a new class of 8-slkaxvddehvdes: reaction
d u e ; improvement in the BarbierWieland degradation; isomerization of internal double bonds t o terminal bonds by reaction with boranes; and the use of
X-methylpyrrolid
