US PATENT SUBCLASS 564 / 315
.~.~.~ Two aryl rings or ring systems bonded directly to the same carbon


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
305  DF  .~.~ Benzene ring containing {24}
315.~.~.~ Two aryl rings or ring systems bonded directly to the same carbon {7}
316  DF  .~.~.~.~> Amino nitrogen attached to the carbon by an acyclic carbon or chain {3}
321  DF  .~.~.~.~> Amino nitrogen bonded directly to the carbon
322  DF  .~.~.~.~> The carbon is a ring member of an alicyclic ring or ring system
323  DF  .~.~.~.~> Amino nitrogen attached to aryl ring or ring system by an acyclic carbon or chain {2}
327  DF  .~.~.~.~> Benzhydrols or benzthiols (i.e., -OH or -SH bonded directly to the carbon)
328  DF  .~.~.~.~> Benzophenones or benzothiophenones (i.e., the carbon is part of a carbonyl or thiocarbonyl) {1}
330  DF  .~.~.~.~> Diamino diphenyl methanes (i.e., two phenyls, each having amino nitrogen bonded directly thereto, bonded directly to the carbon) {3}


DEFINITION

Classification: 564/315

(under subclass 305) Compounds wherein two benzene rings or benzene containing polycyclos are bonded to the same carbon.

(1) Note. This subclass contains, for example: [figure] [figure]

SEE OR SEARCH CLASS

552, Organic Compounds,

101+, for triarylmethyl compounds.