Reactions of S4N4 with diphosphines, Ph2P(X)PPh2 (X = NC4H8N, CH2CH2) have resulted in the isolation of N3S3NPPh2(X)Ph2PNS3N3 (X = NC4H8N, CH2CH2), (S)PPh2(CH2CH2)Ph2PNS3N3, and (S)PPh2NC4H8NPh2P(S) as new compounds. These heterocycles have been characterized by analytical and spectroscopic (IR, UV‐VIS, 1H and 31P‐NMR, and MS) techniques.
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Thomas et al. (1993) studied this question.
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