... SOME COMMENTS ON THE MECHANISM. Angelo Clerici, Ombretta Porta and Manuela Riva Istituto di Chimica de1 Politecnico, Via Golgi 39, 20133 Milano, Italy. ... support of this research. REFERENCES AND NOTES 1 - A. Clerici and 0. Porta, Tetrahedron Letters, 1, 1675, 1980. 2 - A. Clerici and 0. Porta, JCS Perkin II, submitted for publication. 3 - It has not been determined whether the benzyldicyanohydrin 2 isolated - is dl, meso or a mixture of both. ...