Combine 3/4 ts cinnamon and 1/2 cup sugar. Cut biscuits into quarters. Roll each piece in cinnamon and sugar mix. Layer in a well greased bundt pan. Combine brown sugar, 1 ts cinnamon and butter in a pan. Bring to a boil, allow to boil for 3 minutes, then pour over biscuits. Bake for 30 minutes in a 350 deg oven. Cool for 10 minutes before removing from pan and serving.