billy cunningham has the most nba rings as a coach or player.
who has the most nba rings coach or player?
billy cunningham
an individual's number of championship rings, rather than number of championship trophies, is often used by sportswriters as a tally of a their personal success, since it is more appropriate to write that it is the team/franchise and not the individual who wins the championship trophy (i.e. number of nba championship rings rather than larry o'brien trophies won by former nba coach phil jackson). the four most-well known championship rings in north american professional sports are the nfl's super bowl ring, the nba championship ring, mlb's world series ring, and the nhl's stanley cup ring. similar rings are often presented to individuals inducted into a north american sports hall of fame.
championship ring
pillar[6]arene can be targeted as the major product of the friedel-crafts cyclooligomerization by using bulky alkoxy groups on the monomer, switching the lewis acid catalyst or by using a bulky chlorinated solvent. ogoshi and coworkers reported the synthesis of a pillar[6]arene with 1,4-bis(methylcyclohexyl ether)phenylene units in an 87% yield by using chlorocyclohexane as the solvent. the bulky chlorinated solvent was suggested to act as a template for the formation of the larger pillar[n]arene.





















































section::::synthesis.:higher pillar[n]arenes.





















































the higher pillar[n]arene homologues, pillar[6-15]arene, have been synthesized through the ring expansion of pillar[5]arene.





















































section::::biomedical applications.
pillararene