The following databases will lead you to articles in chemistry journals.
Access to the Health & Life Sciences Journal Collection, over 1000 full-text journals in these subjects.
MEDLINE is an extensive index to journal literature (1965 - present) in the in life sciences with a concentration on biomedicine. PubMed is the freely available interface with MEDLINE. But for links to full text in C of I subscription databases, use MEDLINE.
Academic Search Complete indexes over 9,300 periodicals in many disciplines, providing over 5,300 journals in full text.
JSTOR includes access to several General Science titles, some of which cover the field of Chemistry.