title: trans-4-Nitro-phenyl 4-(tosyl-oxymeth-yl)cyclo-hexa-necarboxyl-ate.
abstract: The title compound, C(21)H(23)NO(7)S, is an important inter-mediate in the synthesis of poly(amido-amine) dendrimers. The cyclo-hexane ring adopts a chair conformation. The dihedral angle between the two aromatic rings is 69.5 (2)°. The mol-ecules are linked into a zigzag chain along the b axis by C-H⋯O hydrogen bonds.
authors.forename: Qing-Rong
authors.initials: QR
authors.lastname: Qi
authors.forename: Wen-Cai
authors.initials: WC
authors.lastname: Huang
authors.forename: Zhi-Hua
authors.initials: ZH
authors.lastname: Mao
authors.forename: Hu
authors.initials: H
authors.lastname: Zheng