US PATENT SUBCLASS 570 / 214
.~.~ Ring formation, ring expansion or contraction or bonding one alicyclic ring directly or indirectly to another alicyclic ring

Current as of: June, 1999
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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
214.~.~ Ring formation, ring expansion or contraction or bonding one alicyclic ring directly or indirectly to another alicyclic ring {1}
215  DF  .~.~.~> Diels-Alder reaction

DEFINITION

Classification: 570/214

Ring formation, ring expansion or contraction or bonding one alicyclic ring directly or indirectly to another alicyclic ring:

(under subclass 101) Process wherein a new alicyclic ring is created which did not exist in any of the reactants, wherein the number of carbon atoms in a ring is increased or decreased, or wherein an alicyclic ring is bonded directly or indirectly to another alicyclic ring.