TY - JOUR AU - Barrett,AGM AU - Braddock,DC AU - Henschke,JP AU - Walker,ER EP - 878 PY - 1999/// SN - 0300-922X SP - 873 TI - Ytterbium(III) triflate catalysed preparation of calix[4]resorcinarenes: Lewis assisted Bronsted acidity T2 - Journal of the Chemical Society-Perkin Transactions 1 ER -