000			00506nam a22001457a 4500
999			_c52727 _d52727
020			_a0127117024 (hb)
082			_a547.59 _bPLA
100			_aPlas, H. C. Van Der
245			_aRing transformations of heterocycles
260			_aLondon _bAcademic Press Inc. Ltd. _c1973
300			_axiii, 352 p. _b: ill. _c; 24 cm.
500			_aIncludes bibliographical references and indexes.
650			_aHeterocyclic compounds _vRing transformations _vRing contractions _vRing expansions _vOxygen atom _vRIPS
942			_cBK