TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Crystalline Material: The crystalline material has further lines as follows: 30.0 +/-2.2 (W-M), 22.1 +/-1.3 (W), 6.86 +/-0.14 (W-M), 5.54 +/-0.10 (W-M), 4.92 +/-0.09 (W), 4.64 +/-0.08 (W), 4.41 +/-0.08 (W-M), 4.25 +/-0.08 (W), 4.10 +/-0.07 (W-S), 3.75 +/-0.06 (W-M), 3.56 +/-0.06 (W-M), 3.30 +/-0.05 (W-M), 3.20 +/-0.05 (W-M), 3.14 +/-0.05 (W-M), 3.07 +/-0.05 (W), 2.99 +/-0.05 (W), 2.82 +/-0.05 (W), 2.78 +/-0.05 (W), 2.68 +/-0.05 (W) and 2.59 +/-0.05 (W). The material is treated to (partially) replace original cations with cation(s) selected form hydrogen, hydrogen precursors, rare earth metals and metals of Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII. It may be thermally treated at up to about 925degreesC in the presence or absence of steam. The catalyst comprises a matrix material such as alumina, silica, zirconia and/or titania. It is in the form of extrudate, beads or fluidizable microspheres.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Alkylating Agent: The paraffinic alkylating agent is 1-8C, preferably 3-8C.Preferred Aromatic Compound: The aromatic compound is benzene, toluene, xylene, 1,2,3,5-tetramethylbenzene, naphthalene, anthracene, naphthacene, perylene, coronene, phenanthrene or their alkylated derivatives.Preferred Conditions: Alkylation is performed at 0-500 degreesC (100-450 degreesC), a pressure of 0.2-250 (1-25) atmospheres, a WHSV of 0.1-500 (0.5-100) hour-1 and an aromatic compound to alkylating agent mole ratio of 0.1:1 to 50:1, preferably 0.5:1 to 5:1. The alkylated aromatic compound may further be contacted with a cracking catalyst at 100-600 degreesC (150-450 degreesC), a pressure of 0-250 (0-50) psig and a WHSV of 0.1-20 (1-10) hour-1 to produce a mixture of aromatics, olefins and hydrogen. The cracking catalyst is a large-pore molecular sieve selected from X, REX, Y, USY, REY, REUSY, DeAlY, UHPY, LZ-210, ZSM-20, Beta and/or L. EXAMPLE - A mixture of MCM-22 (65 weight parts), alumina (35 parts) and water was extruded and then calcined in nitrogen at 482 degreesC and in air at 538 degreesC for 6 hours. The product was twice exchanged with 1N NH4NO3 for 2 hours, washed, dried and calcined in air at 538 degreesC for 3 hours. The catalyst (4 g) was sized to 14/24 mesh and loaded into a fixed bed reactor. It was then dried by flowing nitrogen for 3 hours at 260 degreesC and 800 psig. Isobutane was introduced at a rate of 4 g/hour followed by 1-methylnaphthalene also at 4 g/hour (effective WHSV 2 hour-1). Alkylation was performed at 454 degreesC and 1000 psig. The reaction product (normalized to back out the isobutane) contained 2.171 wt.% naphthalene, 37.887 wt.% 2-methylnaphthalene, 52.058 wt.% 1-methylnaphthalene, 1.633 wt.% 2C naphthalene, 0.286 wt.% 3C naphthalene, 0.746 wt.% 4C naphthalene and 1.156 wt.% butyl-1-methyl naphthalene. The 1-methylnaphthalene conversion was 47.270% while the total methylnaphthalene conversion (1 and 2 based) was 9.296%. The isobutyl-methylnaphthalene selectivity (1 and 2 based) was 12.537%.