Terpenes are produced by plants and their building block are units of isoprene.
In 1911 Haworth took an appointment as a demonstrator at the Imperial College of Science and Technology in London and in 1912 he was appointed a lecturer at the University of St. Andrews in Scotland. At St. Andrews he became interested in the chemistry of carbohydrates while working with Thomas Purdie and James Irvine. Haworth organized the laboratories at St. Andrews for the production of chemicals and drugs during the First World War. In 1920 he was called to take the chair of chemistry at the University of Durham. The following year he succeeded Philips Bedson as director. In 1925 Haworth was appointed professor and director of chemistry at the University of Birmingham where he remained until 1948. Then he became the dean of science and he served as an acting vice-principal from 1947 to 1948.
Haworth's research centered around carbohydrates and he determined the structures of many, including maltose, cellobiose, lactose, gentiobiose, melibiose, gentianose, and raffinose. He was also responsible for discovering the glucoside ring structure of normal sugars. Normal sugars that are five or six carbons long form a ring structure where the terminal hydroxyl nucleophillically attacks the aldehyde carbon forming an glycosidic bond. He developed Haworth projections which are two dimensional representations of three dimensional sugar structures. Haworth was also the first person to chemically synthesize vitamin C, the first vitamin artificially synthesized.
For his work understanding the structures of carbohydrates and the synthesis of vitamin C Haworth shared the 1935 Nobel Prize in Chemistry with Paul Karrer. In 1947 Haworth was knighted. In 1977 the Royal Mail issued a postage stamp honoring Haworth for his Nobel Prize and the synthesis of Vitamin C.
He died suddenly on his 67th birthday, March 19, 1950.
Anon, "Walter Norman Haworth: 1883-1950" in Advances in Carbohydrates(1951)6:1
Norman Haworth Nobel Biography
Norman Haworth Wikipedia Entry